Home / 68,985,920.40-103,478,880.60-58,727,140.80

Finding the Fourth Proportional to 68,985,920.40, 103,478,880.60 and 58,727,140.80

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Solution

The fourth proportional to 68,985,920.40, 103,478,880.60 and 58,727,140.80 is: 88,090,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,985,920.40 : 103,478,880.60 = 58,727,140.80 : x
  2. Step 2: Convert to fraction form
    68,985,920.40/103,478,880.60 = 58,727,140.80/x
  3. Step 3: Cross multiply
    68,985,920.40x = 103,478,880.60 × 58,727,140.80
  4. Step 4: Simplify right side
    68,985,920.40x = 6,077,018,790,822,588
  5. Step 5: Solve for x
    x = 6,077,018,790,822,588/68,985,920.40
  6. Step 6: Final answer
    x = 88,090,711.20

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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.