Home / 28,029,032.20-42,043,548.30-8,865,663.40

Finding the Fourth Proportional to 28,029,032.20, 42,043,548.30 and 8,865,663.40

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Solution

The fourth proportional to 28,029,032.20, 42,043,548.30 and 8,865,663.40 is: 13,298,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029,032.20 : 42,043,548.30 = 8,865,663.40 : x
  2. Step 2: Convert to fraction form
    28,029,032.20/42,043,548.30 = 8,865,663.40/x
  3. Step 3: Cross multiply
    28,029,032.20x = 42,043,548.30 × 8,865,663.40
  4. Step 4: Simplify right side
    28,029,032.20x = 372,743,947,369,442.19
  5. Step 5: Solve for x
    x = 372,743,947,369,442.19/28,029,032.20
  6. Step 6: Final answer
    x = 13,298,495.10

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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.