Home / 21,032,690.90-31,551,988.80-6,654,259.40

Finding the Fourth Proportional to 21,032,690.90, 31,551,988.80 and 6,654,259.40

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Solution

The fourth proportional to 21,032,690.90, 31,551,988.80 and 6,654,259.40 is: 9,982,323.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,690.90 : 31,551,988.80 = 6,654,259.40 : x
  2. Step 2: Convert to fraction form
    21,032,690.90/31,551,988.80 = 6,654,259.40/x
  3. Step 3: Cross multiply
    21,032,690.90x = 31,551,988.80 × 6,654,259.40
  4. Step 4: Simplify right side
    21,032,690.90x = 209,955,118,061,094.75
  5. Step 5: Solve for x
    x = 209,955,118,061,094.75/21,032,690.90
  6. Step 6: Final answer
    x = 9,982,323.19

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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.