Home / 6,618,417.60-9,917,128.80-4,371,931.20

Finding the Fourth Proportional to 6,618,417.60, 9,917,128.80 and 4,371,931.20

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Solution

The fourth proportional to 6,618,417.60, 9,917,128.80 and 4,371,931.20 is: 6,550,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618,417.60 : 9,917,128.80 = 4,371,931.20 : x
  2. Step 2: Convert to fraction form
    6,618,417.60/9,917,128.80 = 4,371,931.20/x
  3. Step 3: Cross multiply
    6,618,417.60x = 9,917,128.80 × 4,371,931.20
  4. Step 4: Simplify right side
    6,618,417.60x = 43,357,004,815,138.56
  5. Step 5: Solve for x
    x = 43,357,004,815,138.56/6,618,417.60
  6. Step 6: Final answer
    x = 6,550,962.40

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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.