Home / 85,403,033.90-128,121,139.65-36,880,793.90

Finding the Fourth Proportional to 85,403,033.90, 128,121,139.65 and 36,880,793.90

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Solution

The fourth proportional to 85,403,033.90, 128,121,139.65 and 36,880,793.90 is: 55,328,354.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,403,033.90 : 128,121,139.65 = 36,880,793.90 : x
  2. Step 2: Convert to fraction form
    85,403,033.90/128,121,139.65 = 36,880,793.90/x
  3. Step 3: Cross multiply
    85,403,033.90x = 128,121,139.65 × 36,880,793.90
  4. Step 4: Simplify right side
    85,403,033.90x = 4,725,209,345,664,768
  5. Step 5: Solve for x
    x = 4,725,209,345,664,768/85,403,033.90
  6. Step 6: Final answer
    x = 55,328,354.62

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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.