Home / 125,465,666.40-187,946,557.20-71,549,992.80

Finding the Fourth Proportional to 125,465,666.40, 187,946,557.20 and 71,549,992.80

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Solution

The fourth proportional to 125,465,666.40, 187,946,557.20 and 71,549,992.80 is: 107,181,312.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,465,666.40 : 187,946,557.20 = 71,549,992.80 : x
  2. Step 2: Convert to fraction form
    125,465,666.40/187,946,557.20 = 71,549,992.80/x
  3. Step 3: Cross multiply
    125,465,666.40x = 187,946,557.20 × 71,549,992.80
  4. Step 4: Simplify right side
    125,465,666.40x = 13,447,574,814,444,786
  5. Step 5: Solve for x
    x = 13,447,574,814,444,786/125,465,666.40
  6. Step 6: Final answer
    x = 107,181,312.63

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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.