Home / 130,487,792.40-180,073,803.78-71,754,245.28

Finding the Fourth Proportional to 130,487,792.40, 180,073,803.78 and 71,754,245.28

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Solution

The fourth proportional to 130,487,792.40, 180,073,803.78 and 71,754,245.28 is: 99,021,216.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,487,792.40 : 180,073,803.78 = 71,754,245.28 : x
  2. Step 2: Convert to fraction form
    130,487,792.40/180,073,803.78 = 71,754,245.28/x
  3. Step 3: Cross multiply
    130,487,792.40x = 180,073,803.78 × 71,754,245.28
  4. Step 4: Simplify right side
    130,487,792.40x = 12,921,059,884,932,712
  5. Step 5: Solve for x
    x = 12,921,059,884,932,712/130,487,792.40
  6. Step 6: Final answer
    x = 99,021,216.06

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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.