Home / 12,411,792,003.20-18,617,688,004.80-9,962,911,875.20

Finding the Fourth Proportional to 12,411,792,003.20, 18,617,688,004.80 and 9,962,911,875.20

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Solution

The fourth proportional to 12,411,792,003.20, 18,617,688,004.80 and 9,962,911,875.20 is: 14,944,367,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411,792,003.20 : 18,617,688,004.80 = 9,962,911,875.20 : x
  2. Step 2: Convert to fraction form
    12,411,792,003.20/18,617,688,004.80 = 9,962,911,875.20/x
  3. Step 3: Cross multiply
    12,411,792,003.20x = 18,617,688,004.80 × 9,962,911,875.20
  4. Step 4: Simplify right side
    12,411,792,003.20x = 185,486,384,911,790,505,984
  5. Step 5: Solve for x
    x = 185,486,384,911,790,505,984/12,411,792,003.20
  6. Step 6: Final answer
    x = 14,944,367,812.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.