Home / 12,420,708,358.53-18,636,880,571.13-6,121,703,762.59

Finding the Fourth Proportional to 12,420,708,358.53, 18,636,880,571.13 and 6,121,703,762.59

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Solution

The fourth proportional to 12,420,708,358.53, 18,636,880,571.13 and 6,121,703,762.59 is: 9,185,423,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420,708,358.53 : 18,636,880,571.13 = 6,121,703,762.59 : x
  2. Step 2: Convert to fraction form
    12,420,708,358.53/18,636,880,571.13 = 6,121,703,762.59/x
  3. Step 3: Cross multiply
    12,420,708,358.53x = 18,636,880,571.13 × 6,121,703,762.59
  4. Step 4: Simplify right side
    12,420,708,358.53x = 114,089,461,915,226,996,736
  5. Step 5: Solve for x
    x = 114,089,461,915,226,996,736/12,420,708,358.53
  6. Step 6: Final answer
    x = 9,185,423,135.46

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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.