Home / 39,927,639.90-55,100,309.05-21,592,925.40

Finding the Fourth Proportional to 39,927,639.90, 55,100,309.05 and 21,592,925.40

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Solution

The fourth proportional to 39,927,639.90, 55,100,309.05 and 21,592,925.40 is: 29,798,326.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,927,639.90 : 55,100,309.05 = 21,592,925.40 : x
  2. Step 2: Convert to fraction form
    39,927,639.90/55,100,309.05 = 21,592,925.40/x
  3. Step 3: Cross multiply
    39,927,639.90x = 55,100,309.05 × 21,592,925.40
  4. Step 4: Simplify right side
    39,927,639.90x = 1,189,776,862,818,013.75
  5. Step 5: Solve for x
    x = 1,189,776,862,818,013.75/39,927,639.90
  6. Step 6: Final answer
    x = 29,798,326.82

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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.