Home / 157,465,355.40-236,198,033.10-138,971,208.60

Finding the Fourth Proportional to 157,465,355.40, 236,198,033.10 and 138,971,208.60

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Solution

The fourth proportional to 157,465,355.40, 236,198,033.10 and 138,971,208.60 is: 208,456,812.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,465,355.40 : 236,198,033.10 = 138,971,208.60 : x
  2. Step 2: Convert to fraction form
    157,465,355.40/236,198,033.10 = 138,971,208.60/x
  3. Step 3: Cross multiply
    157,465,355.40x = 236,198,033.10 × 138,971,208.60
  4. Step 4: Simplify right side
    157,465,355.40x = 32,824,726,128,849,804
  5. Step 5: Solve for x
    x = 32,824,726,128,849,804/157,465,355.40
  6. Step 6: Final answer
    x = 208,456,812.90

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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.