Home / 72,090,035.40-108,135,053.10-26,642,425.80

Finding the Fourth Proportional to 72,090,035.40, 108,135,053.10 and 26,642,425.80

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Solution

The fourth proportional to 72,090,035.40, 108,135,053.10 and 26,642,425.80 is: 39,963,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,090,035.40 : 108,135,053.10 = 26,642,425.80 : x
  2. Step 2: Convert to fraction form
    72,090,035.40/108,135,053.10 = 26,642,425.80/x
  3. Step 3: Cross multiply
    72,090,035.40x = 108,135,053.10 × 26,642,425.80
  4. Step 4: Simplify right side
    72,090,035.40x = 2,880,980,128,595,810
  5. Step 5: Solve for x
    x = 2,880,980,128,595,810/72,090,035.40
  6. Step 6: Final answer
    x = 39,963,638.70

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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.