Home / 10,359,323.60-15,538,985.40-8,217,813.20

Finding the Fourth Proportional to 10,359,323.60, 15,538,985.40 and 8,217,813.20

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Solution

The fourth proportional to 10,359,323.60, 15,538,985.40 and 8,217,813.20 is: 12,326,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,359,323.60 : 15,538,985.40 = 8,217,813.20 : x
  2. Step 2: Convert to fraction form
    10,359,323.60/15,538,985.40 = 8,217,813.20/x
  3. Step 3: Cross multiply
    10,359,323.60x = 15,538,985.40 × 8,217,813.20
  4. Step 4: Simplify right side
    10,359,323.60x = 127,696,479,334,727.28
  5. Step 5: Solve for x
    x = 127,696,479,334,727.28/10,359,323.60
  6. Step 6: Final answer
    x = 12,326,719.80

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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.