Home / 100,104,148.80-149,904,280.80-65,839,982.40

Finding the Fourth Proportional to 100,104,148.80, 149,904,280.80 and 65,839,982.40

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Solution

The fourth proportional to 100,104,148.80, 149,904,280.80 and 65,839,982.40 is: 98,594,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,104,148.80 : 149,904,280.80 = 65,839,982.40 : x
  2. Step 2: Convert to fraction form
    100,104,148.80/149,904,280.80 = 65,839,982.40/x
  3. Step 3: Cross multiply
    100,104,148.80x = 149,904,280.80 × 65,839,982.40
  4. Step 4: Simplify right side
    100,104,148.80x = 9,869,695,209,556,658
  5. Step 5: Solve for x
    x = 9,869,695,209,556,658/100,104,148.80
  6. Step 6: Final answer
    x = 98,594,267.35

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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.