Home / 87,792,130.80-131,688,196.20-55,338,800.40

Finding the Fourth Proportional to 87,792,130.80, 131,688,196.20 and 55,338,800.40

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Solution

The fourth proportional to 87,792,130.80, 131,688,196.20 and 55,338,800.40 is: 83,008,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,792,130.80 : 131,688,196.20 = 55,338,800.40 : x
  2. Step 2: Convert to fraction form
    87,792,130.80/131,688,196.20 = 55,338,800.40/x
  3. Step 3: Cross multiply
    87,792,130.80x = 131,688,196.20 × 55,338,800.40
  4. Step 4: Simplify right side
    87,792,130.80x = 7,287,466,804,547,838
  5. Step 5: Solve for x
    x = 7,287,466,804,547,838/87,792,130.80
  6. Step 6: Final answer
    x = 83,008,200.60

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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.