Home / 125,473,711.80-188,210,567.70-99,645,679.20

Finding the Fourth Proportional to 125,473,711.80, 188,210,567.70 and 99,645,679.20

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Solution

The fourth proportional to 125,473,711.80, 188,210,567.70 and 99,645,679.20 is: 149,468,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,473,711.80 : 188,210,567.70 = 99,645,679.20 : x
  2. Step 2: Convert to fraction form
    125,473,711.80/188,210,567.70 = 99,645,679.20/x
  3. Step 3: Cross multiply
    125,473,711.80x = 188,210,567.70 × 99,645,679.20
  4. Step 4: Simplify right side
    125,473,711.80x = 18,754,369,851,084,080
  5. Step 5: Solve for x
    x = 18,754,369,851,084,080/125,473,711.80
  6. Step 6: Final answer
    x = 149,468,518.80

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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.