Home / 12,480,407.60-18,722,425.80-5,291,927.60

Finding the Fourth Proportional to 12,480,407.60, 18,722,425.80 and 5,291,927.60

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Solution

The fourth proportional to 12,480,407.60, 18,722,425.80 and 5,291,927.60 is: 7,938,660.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480,407.60 : 18,722,425.80 = 5,291,927.60 : x
  2. Step 2: Convert to fraction form
    12,480,407.60/18,722,425.80 = 5,291,927.60/x
  3. Step 3: Cross multiply
    12,480,407.60x = 18,722,425.80 × 5,291,927.60
  4. Step 4: Simplify right side
    12,480,407.60x = 99,077,721,829,972.08
  5. Step 5: Solve for x
    x = 99,077,721,829,972.08/12,480,407.60
  6. Step 6: Final answer
    x = 7,938,660.74

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1.5x scale

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.