Home / 145,162,686.40-217,744,029.60-99,178,532.80

Finding the Fourth Proportional to 145,162,686.40, 217,744,029.60 and 99,178,532.80

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Solution

The fourth proportional to 145,162,686.40, 217,744,029.60 and 99,178,532.80 is: 148,767,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,162,686.40 : 217,744,029.60 = 99,178,532.80 : x
  2. Step 2: Convert to fraction form
    145,162,686.40/217,744,029.60 = 99,178,532.80/x
  3. Step 3: Cross multiply
    145,162,686.40x = 217,744,029.60 × 99,178,532.80
  4. Step 4: Simplify right side
    145,162,686.40x = 21,595,533,381,687,768
  5. Step 5: Solve for x
    x = 21,595,533,381,687,768/145,162,686.40
  6. Step 6: Final answer
    x = 148,767,799.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.