Home / 131,574,901.28-181,575,514-72,035,204.32

Finding the Fourth Proportional to 131,574,901.28, 181,575,514 and 72,035,204.32

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Solution

The fourth proportional to 131,574,901.28, 181,575,514 and 72,035,204.32 is: 99,409,759.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,574,901.28 : 181,575,514 = 72,035,204.32 : x
  2. Step 2: Convert to fraction form
    131,574,901.28/181,575,514 = 72,035,204.32/x
  3. Step 3: Cross multiply
    131,574,901.28x = 181,575,514 × 72,035,204.32
  4. Step 4: Simplify right side
    131,574,901.28x = 13,079,829,250,499,020
  5. Step 5: Solve for x
    x = 13,079,829,250,499,020/131,574,901.28
  6. Step 6: Final answer
    x = 99,409,759.18

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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.