Home / 86,249,793.90-129,310,879.05-40,758,444.30

Finding the Fourth Proportional to 86,249,793.90, 129,310,879.05 and 40,758,444.30

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Solution

The fourth proportional to 86,249,793.90, 129,310,879.05 and 40,758,444.30 is: 61,107,511.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,249,793.90 : 129,310,879.05 = 40,758,444.30 : x
  2. Step 2: Convert to fraction form
    86,249,793.90/129,310,879.05 = 40,758,444.30/x
  3. Step 3: Cross multiply
    86,249,793.90x = 129,310,879.05 × 40,758,444.30
  4. Step 4: Simplify right side
    86,249,793.90x = 5,270,510,261,143,461
  5. Step 5: Solve for x
    x = 5,270,510,261,143,461/86,249,793.90
  6. Step 6: Final answer
    x = 61,107,511.37

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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.