Home / 86,262,988.12-129,298,638.03-65,724,998.69

Finding the Fourth Proportional to 86,262,988.12, 129,298,638.03 and 65,724,998.69

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Solution

The fourth proportional to 86,262,988.12, 129,298,638.03 and 65,724,998.69 is: 98,514,473.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,262,988.12 : 129,298,638.03 = 65,724,998.69 : x
  2. Step 2: Convert to fraction form
    86,262,988.12/129,298,638.03 = 65,724,998.69/x
  3. Step 3: Cross multiply
    86,262,988.12x = 129,298,638.03 × 65,724,998.69
  4. Step 4: Simplify right side
    86,262,988.12x = 8,498,152,815,140,534
  5. Step 5: Solve for x
    x = 8,498,152,815,140,534/86,262,988.12
  6. Step 6: Final answer
    x = 98,514,473.01

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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.