Home / 86,241,314.94-129,357,672.48-31,649,605.44

Finding the Fourth Proportional to 86,241,314.94, 129,357,672.48 and 31,649,605.44

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Solution

The fourth proportional to 86,241,314.94, 129,357,672.48 and 31,649,605.44 is: 47,472,830.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,241,314.94 : 129,357,672.48 = 31,649,605.44 : x
  2. Step 2: Convert to fraction form
    86,241,314.94/129,357,672.48 = 31,649,605.44/x
  3. Step 3: Cross multiply
    86,241,314.94x = 129,357,672.48 × 31,649,605.44
  4. Step 4: Simplify right side
    86,241,314.94x = 4,094,119,294,628,746.50
  5. Step 5: Solve for x
    x = 4,094,119,294,628,746.50/86,241,314.94
  6. Step 6: Final answer
    x = 47,472,830.13

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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.