Home / 151,941,400.29-209,751,428.07-101,791,970.28

Finding the Fourth Proportional to 151,941,400.29, 209,751,428.07 and 101,791,970.28

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Solution

The fourth proportional to 151,941,400.29, 209,751,428.07 and 101,791,970.28 is: 140,521,352.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,941,400.29 : 209,751,428.07 = 101,791,970.28 : x
  2. Step 2: Convert to fraction form
    151,941,400.29/209,751,428.07 = 101,791,970.28/x
  3. Step 3: Cross multiply
    151,941,400.29x = 209,751,428.07 × 101,791,970.28
  4. Step 4: Simplify right side
    151,941,400.29x = 21,351,011,132,288,996
  5. Step 5: Solve for x
    x = 21,351,011,132,288,996/151,941,400.29
  6. Step 6: Final answer
    x = 140,521,352.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.