Home / 86,925,376.20-130,388,064.30-52,487,999.40

Finding the Fourth Proportional to 86,925,376.20, 130,388,064.30 and 52,487,999.40

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Solution

The fourth proportional to 86,925,376.20, 130,388,064.30 and 52,487,999.40 is: 78,731,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,925,376.20 : 130,388,064.30 = 52,487,999.40 : x
  2. Step 2: Convert to fraction form
    86,925,376.20/130,388,064.30 = 52,487,999.40/x
  3. Step 3: Cross multiply
    86,925,376.20x = 130,388,064.30 × 52,487,999.40
  4. Step 4: Simplify right side
    86,925,376.20x = 6,843,808,640,745,561
  5. Step 5: Solve for x
    x = 6,843,808,640,745,561/86,925,376.20
  6. Step 6: Final answer
    x = 78,731,999.10

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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.