Home / 10,315,540.80-15,473,311.20-9,878,702.40

Finding the Fourth Proportional to 10,315,540.80, 15,473,311.20 and 9,878,702.40

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Solution

The fourth proportional to 10,315,540.80, 15,473,311.20 and 9,878,702.40 is: 14,818,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315,540.80 : 15,473,311.20 = 9,878,702.40 : x
  2. Step 2: Convert to fraction form
    10,315,540.80/15,473,311.20 = 9,878,702.40/x
  3. Step 3: Cross multiply
    10,315,540.80x = 15,473,311.20 × 9,878,702.40
  4. Step 4: Simplify right side
    10,315,540.80x = 152,856,236,487,386.88
  5. Step 5: Solve for x
    x = 152,856,236,487,386.88/10,315,540.80
  6. Step 6: Final answer
    x = 14,818,053.60

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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.