Home / 21,038,689.80-31,558,034.70-9,701,281.80

Finding the Fourth Proportional to 21,038,689.80, 31,558,034.70 and 9,701,281.80

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Solution

The fourth proportional to 21,038,689.80, 31,558,034.70 and 9,701,281.80 is: 14,551,922.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038,689.80 : 31,558,034.70 = 9,701,281.80 : x
  2. Step 2: Convert to fraction form
    21,038,689.80/31,558,034.70 = 9,701,281.80/x
  3. Step 3: Cross multiply
    21,038,689.80x = 31,558,034.70 × 9,701,281.80
  4. Step 4: Simplify right side
    21,038,689.80x = 306,153,387,678,878.50
  5. Step 5: Solve for x
    x = 306,153,387,678,878.50/21,038,689.80
  6. Step 6: Final answer
    x = 14,551,922.70

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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.