Home / 90,643,344.61-136,005,207.50-47,502,291.01

Finding the Fourth Proportional to 90,643,344.61, 136,005,207.50 and 47,502,291.01

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Solution

The fourth proportional to 90,643,344.61, 136,005,207.50 and 47,502,291.01 is: 71,274,498.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,643,344.61 : 136,005,207.50 = 47,502,291.01 : x
  2. Step 2: Convert to fraction form
    90,643,344.61/136,005,207.50 = 47,502,291.01/x
  3. Step 3: Cross multiply
    90,643,344.61x = 136,005,207.50 × 47,502,291.01
  4. Step 4: Simplify right side
    90,643,344.61x = 6,460,558,945,540,434
  5. Step 5: Solve for x
    x = 6,460,558,945,540,434/90,643,344.61
  6. Step 6: Final answer
    x = 71,274,498.68

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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.