Home / 21,046,509.40-31,569,764.10-9,709,101.40

Finding the Fourth Proportional to 21,046,509.40, 31,569,764.10 and 9,709,101.40

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Solution

The fourth proportional to 21,046,509.40, 31,569,764.10 and 9,709,101.40 is: 14,563,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046,509.40 : 31,569,764.10 = 9,709,101.40 : x
  2. Step 2: Convert to fraction form
    21,046,509.40/31,569,764.10 = 9,709,101.40/x
  3. Step 3: Cross multiply
    21,046,509.40x = 31,569,764.10 × 9,709,101.40
  4. Step 4: Simplify right side
    21,046,509.40x = 306,514,040,820,979.75
  5. Step 5: Solve for x
    x = 306,514,040,820,979.75/21,046,509.40
  6. Step 6: Final answer
    x = 14,563,652.10

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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.