Home / 130,487,832.40-180,073,859.04-71,754,285.28

Finding the Fourth Proportional to 130,487,832.40, 180,073,859.04 and 71,754,285.28

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Solution

The fourth proportional to 130,487,832.40, 180,073,859.04 and 71,754,285.28 is: 99,021,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,487,832.40 : 180,073,859.04 = 71,754,285.28 : x
  2. Step 2: Convert to fraction form
    130,487,832.40/180,073,859.04 = 71,754,285.28/x
  3. Step 3: Cross multiply
    130,487,832.40x = 180,073,859.04 × 71,754,285.28
  4. Step 4: Simplify right side
    130,487,832.40x = 12,921,071,053,026,666
  5. Step 5: Solve for x
    x = 12,921,071,053,026,666/130,487,832.40
  6. Step 6: Final answer
    x = 99,021,271.30

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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.