Home / 153,243,766.40-229,932,004.80-72,423,132.80

Finding the Fourth Proportional to 153,243,766.40, 229,932,004.80 and 72,423,132.80

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Solution

The fourth proportional to 153,243,766.40, 229,932,004.80 and 72,423,132.80 is: 108,666,058.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,243,766.40 : 229,932,004.80 = 72,423,132.80 : x
  2. Step 2: Convert to fraction form
    153,243,766.40/229,932,004.80 = 72,423,132.80/x
  3. Step 3: Cross multiply
    153,243,766.40x = 229,932,004.80 × 72,423,132.80
  4. Step 4: Simplify right side
    153,243,766.40x = 16,652,396,118,600,638
  5. Step 5: Solve for x
    x = 16,652,396,118,600,638/153,243,766.40
  6. Step 6: Final answer
    x = 108,666,058.72

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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.