Home / 145,162,877.40-217,744,316.10-99,178,723.80

Finding the Fourth Proportional to 145,162,877.40, 217,744,316.10 and 99,178,723.80

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Solution

The fourth proportional to 145,162,877.40, 217,744,316.10 and 99,178,723.80 is: 148,768,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,162,877.40 : 217,744,316.10 = 99,178,723.80 : x
  2. Step 2: Convert to fraction form
    145,162,877.40/217,744,316.10 = 99,178,723.80/x
  3. Step 3: Cross multiply
    145,162,877.40x = 217,744,316.10 × 99,178,723.80
  4. Step 4: Simplify right side
    145,162,877.40x = 21,595,603,385,501,792
  5. Step 5: Solve for x
    x = 21,595,603,385,501,792/145,162,877.40
  6. Step 6: Final answer
    x = 148,768,085.70

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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.