Home / 97,131,649.20-145,678,811.40-28,976,564.40

Finding the Fourth Proportional to 97,131,649.20, 145,678,811.40 and 28,976,564.40

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Solution

The fourth proportional to 97,131,649.20, 145,678,811.40 and 28,976,564.40 is: 43,459,279.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,131,649.20 : 145,678,811.40 = 28,976,564.40 : x
  2. Step 2: Convert to fraction form
    97,131,649.20/145,678,811.40 = 28,976,564.40/x
  3. Step 3: Cross multiply
    97,131,649.20x = 145,678,811.40 × 28,976,564.40
  4. Step 4: Simplify right side
    97,131,649.20x = 4,221,271,460,247,554
  5. Step 5: Solve for x
    x = 4,221,271,460,247,554/97,131,649.20
  6. Step 6: Final answer
    x = 43,459,279.18

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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.