Home / 144,582,871.02-199,527,828.53-78,506,154.28

Finding the Fourth Proportional to 144,582,871.02, 199,527,828.53 and 78,506,154.28

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Solution

The fourth proportional to 144,582,871.02, 199,527,828.53 and 78,506,154.28 is: 108,340,375.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,582,871.02 : 199,527,828.53 = 78,506,154.28 : x
  2. Step 2: Convert to fraction form
    144,582,871.02/199,527,828.53 = 78,506,154.28/x
  3. Step 3: Cross multiply
    144,582,871.02x = 199,527,828.53 × 78,506,154.28
  4. Step 4: Simplify right side
    144,582,871.02x = 15,664,162,489,586,446
  5. Step 5: Solve for x
    x = 15,664,162,489,586,446/144,582,871.02
  6. Step 6: Final answer
    x = 108,340,375.17

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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.