Home / 86,249,543.40-129,310,503.30-40,758,193.80

Finding the Fourth Proportional to 86,249,543.40, 129,310,503.30 and 40,758,193.80

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Solution

The fourth proportional to 86,249,543.40, 129,310,503.30 and 40,758,193.80 is: 61,107,135.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,249,543.40 : 129,310,503.30 = 40,758,193.80 : x
  2. Step 2: Convert to fraction form
    86,249,543.40/129,310,503.30 = 40,758,193.80/x
  3. Step 3: Cross multiply
    86,249,543.40x = 129,310,503.30 × 40,758,193.80
  4. Step 4: Simplify right side
    86,249,543.40x = 5,270,462,553,876,939
  5. Step 5: Solve for x
    x = 5,270,462,553,876,939/86,249,543.40
  6. Step 6: Final answer
    x = 61,107,135.71

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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.