Home / 86,927,884.90-130,391,827.35-85,584,192.10

Finding the Fourth Proportional to 86,927,884.90, 130,391,827.35 and 85,584,192.10

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Solution

The fourth proportional to 86,927,884.90, 130,391,827.35 and 85,584,192.10 is: 128,376,288.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,927,884.90 : 130,391,827.35 = 85,584,192.10 : x
  2. Step 2: Convert to fraction form
    86,927,884.90/130,391,827.35 = 85,584,192.10/x
  3. Step 3: Cross multiply
    86,927,884.90x = 130,391,827.35 × 85,584,192.10
  4. Step 4: Simplify right side
    86,927,884.90x = 11,159,479,200,192,432
  5. Step 5: Solve for x
    x = 11,159,479,200,192,432/86,927,884.90
  6. Step 6: Final answer
    x = 128,376,288.15

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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.