Home / 8,911,971.30-12,298,715.94-5,427,473.40

Finding the Fourth Proportional to 8,911,971.30, 12,298,715.94 and 5,427,473.40

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Solution

The fourth proportional to 8,911,971.30, 12,298,715.94 and 5,427,473.40 is: 7,490,032.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911,971.30 : 12,298,715.94 = 5,427,473.40 : x
  2. Step 2: Convert to fraction form
    8,911,971.30/12,298,715.94 = 5,427,473.40/x
  3. Step 3: Cross multiply
    8,911,971.30x = 12,298,715.94 × 5,427,473.40
  4. Step 4: Simplify right side
    8,911,971.30x = 66,750,953,618,506
  5. Step 5: Solve for x
    x = 66,750,953,618,506/8,911,971.30
  6. Step 6: Final answer
    x = 7,490,032.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.