Home / 42,072,842.40-63,090,601.20-19,342,039.20

Finding the Fourth Proportional to 42,072,842.40, 63,090,601.20 and 19,342,039.20

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Solution

The fourth proportional to 42,072,842.40, 63,090,601.20 and 19,342,039.20 is: 29,004,479.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,072,842.40 : 63,090,601.20 = 19,342,039.20 : x
  2. Step 2: Convert to fraction form
    42,072,842.40/63,090,601.20 = 19,342,039.20/x
  3. Step 3: Cross multiply
    42,072,842.40x = 63,090,601.20 × 19,342,039.20
  4. Step 4: Simplify right side
    42,072,842.40x = 1,220,300,881,561,967
  5. Step 5: Solve for x
    x = 1,220,300,881,561,967/42,072,842.40
  6. Step 6: Final answer
    x = 29,004,479.18

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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.