Home / 130,797,963.68-180,509,343.01-72,060,616.64

Finding the Fourth Proportional to 130,797,963.68, 180,509,343.01 and 72,060,616.64

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Solution

The fourth proportional to 130,797,963.68, 180,509,343.01 and 72,060,616.64 is: 99,448,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,797,963.68 : 180,509,343.01 = 72,060,616.64 : x
  2. Step 2: Convert to fraction form
    130,797,963.68/180,509,343.01 = 72,060,616.64/x
  3. Step 3: Cross multiply
    130,797,963.68x = 180,509,343.01 × 72,060,616.64
  4. Step 4: Simplify right side
    130,797,963.68x = 13,007,614,566,852,994
  5. Step 5: Solve for x
    x = 13,007,614,566,852,994/130,797,963.68
  6. Step 6: Final answer
    x = 99,448,142.78

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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.