Home / 8,276,688,000.80-12,415,032,001.20-7,378,765,287.20

Finding the Fourth Proportional to 8,276,688,000.80, 12,415,032,001.20 and 7,378,765,287.20

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Solution

The fourth proportional to 8,276,688,000.80, 12,415,032,001.20 and 7,378,765,287.20 is: 11,068,147,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276,688,000.80 : 12,415,032,001.20 = 7,378,765,287.20 : x
  2. Step 2: Convert to fraction form
    8,276,688,000.80/12,415,032,001.20 = 7,378,765,287.20/x
  3. Step 3: Cross multiply
    8,276,688,000.80x = 12,415,032,001.20 × 7,378,765,287.20
  4. Step 4: Simplify right side
    8,276,688,000.80x = 91,607,607,169,931,706,368
  5. Step 5: Solve for x
    x = 91,607,607,169,931,706,368/8,276,688,000.80
  6. Step 6: Final answer
    x = 11,068,147,930.80

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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.