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Finding the Fourth Proportional to 18,897,702.40, 26,078,822.40 and 10,312,998.40

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Solution

The fourth proportional to 18,897,702.40, 26,078,822.40 and 10,312,998.40 is: 14,231,934.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897,702.40 : 26,078,822.40 = 10,312,998.40 : x
  2. Step 2: Convert to fraction form
    18,897,702.40/26,078,822.40 = 10,312,998.40/x
  3. Step 3: Cross multiply
    18,897,702.40x = 26,078,822.40 × 10,312,998.40
  4. Step 4: Simplify right side
    18,897,702.40x = 268,950,853,685,084.16
  5. Step 5: Solve for x
    x = 268,950,853,685,084.16/18,897,702.40
  6. Step 6: Final answer
    x = 14,231,934.02

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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.