Home / 99,820,318.80-149,478,535.80-65,556,152.40

Finding the Fourth Proportional to 99,820,318.80, 149,478,535.80 and 65,556,152.40

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Solution

The fourth proportional to 99,820,318.80, 149,478,535.80 and 65,556,152.40 is: 98,168,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,820,318.80 : 149,478,535.80 = 65,556,152.40 : x
  2. Step 2: Convert to fraction form
    99,820,318.80/149,478,535.80 = 65,556,152.40/x
  3. Step 3: Cross multiply
    99,820,318.80x = 149,478,535.80 × 65,556,152.40
  4. Step 4: Simplify right side
    99,820,318.80x = 9,799,237,673,433,656
  5. Step 5: Solve for x
    x = 9,799,237,673,433,656/99,820,318.80
  6. Step 6: Final answer
    x = 98,168,767.55

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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.