Home / 145,513,267.40-218,269,901.10-68,985,763.40

Finding the Fourth Proportional to 145,513,267.40, 218,269,901.10 and 68,985,763.40

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Solution

The fourth proportional to 145,513,267.40, 218,269,901.10 and 68,985,763.40 is: 103,478,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,513,267.40 : 218,269,901.10 = 68,985,763.40 : x
  2. Step 2: Convert to fraction form
    145,513,267.40/218,269,901.10 = 68,985,763.40/x
  3. Step 3: Cross multiply
    145,513,267.40x = 218,269,901.10 × 68,985,763.40
  4. Step 4: Simplify right side
    145,513,267.40x = 15,057,515,754,626,000
  5. Step 5: Solve for x
    x = 15,057,515,754,626,000/145,513,267.40
  6. Step 6: Final answer
    x = 103,478,645.10

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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.