Home / 12,402,461.80-18,561,702.30-10,890,807.40

Finding the Fourth Proportional to 12,402,461.80, 18,561,702.30 and 10,890,807.40

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Solution

The fourth proportional to 12,402,461.80, 18,561,702.30 and 10,890,807.40 is: 16,299,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402,461.80 : 18,561,702.30 = 10,890,807.40 : x
  2. Step 2: Convert to fraction form
    12,402,461.80/18,561,702.30 = 10,890,807.40/x
  3. Step 3: Cross multiply
    12,402,461.80x = 18,561,702.30 × 10,890,807.40
  4. Step 4: Simplify right side
    12,402,461.80x = 202,151,924,765,437.03
  5. Step 5: Solve for x
    x = 202,151,924,765,437.03/12,402,461.80
  6. Step 6: Final answer
    x = 16,299,338.63

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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.