Home / 86,925,931.20-130,388,896.80-56,314,929.60

Finding the Fourth Proportional to 86,925,931.20, 130,388,896.80 and 56,314,929.60

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Solution

The fourth proportional to 86,925,931.20, 130,388,896.80 and 56,314,929.60 is: 84,472,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,925,931.20 : 130,388,896.80 = 56,314,929.60 : x
  2. Step 2: Convert to fraction form
    86,925,931.20/130,388,896.80 = 56,314,929.60/x
  3. Step 3: Cross multiply
    86,925,931.20x = 130,388,896.80 × 56,314,929.60
  4. Step 4: Simplify right side
    86,925,931.20x = 7,342,841,543,913,665
  5. Step 5: Solve for x
    x = 7,342,841,543,913,665/86,925,931.20
  6. Step 6: Final answer
    x = 84,472,394.40

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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.