Home / 86,443,398.65-129,674,181.35-28,155,615.59

Finding the Fourth Proportional to 86,443,398.65, 129,674,181.35 and 28,155,615.59

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Solution

The fourth proportional to 86,443,398.65, 129,674,181.35 and 28,155,615.59 is: 42,236,381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,443,398.65 : 129,674,181.35 = 28,155,615.59 : x
  2. Step 2: Convert to fraction form
    86,443,398.65/129,674,181.35 = 28,155,615.59/x
  3. Step 3: Cross multiply
    86,443,398.65x = 129,674,181.35 × 28,155,615.59
  4. Step 4: Simplify right side
    86,443,398.65x = 3,651,056,402,433,122
  5. Step 5: Solve for x
    x = 3,651,056,402,433,122/86,443,398.65
  6. Step 6: Final answer
    x = 42,236,381.95

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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.