Home / 90,554,045.34-135,862,065.90-38,717,290.20

Finding the Fourth Proportional to 90,554,045.34, 135,862,065.90 and 38,717,290.20

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Solution

The fourth proportional to 90,554,045.34, 135,862,065.90 and 38,717,290.20 is: 58,089,188.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,554,045.34 : 135,862,065.90 = 38,717,290.20 : x
  2. Step 2: Convert to fraction form
    90,554,045.34/135,862,065.90 = 38,717,290.20/x
  3. Step 3: Cross multiply
    90,554,045.34x = 135,862,065.90 × 38,717,290.20
  4. Step 4: Simplify right side
    90,554,045.34x = 5,260,211,032,621,825
  5. Step 5: Solve for x
    x = 5,260,211,032,621,825/90,554,045.34
  6. Step 6: Final answer
    x = 58,089,188.76

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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.