Home / 71,287,897.91-98,360,436.10-40,348,067.19

Finding the Fourth Proportional to 71,287,897.91, 98,360,436.10 and 40,348,067.19

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Solution

The fourth proportional to 71,287,897.91, 98,360,436.10 and 40,348,067.19 is: 55,670,788.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,287,897.91 : 98,360,436.10 = 40,348,067.19 : x
  2. Step 2: Convert to fraction form
    71,287,897.91/98,360,436.10 = 40,348,067.19/x
  3. Step 3: Cross multiply
    71,287,897.91x = 98,360,436.10 × 40,348,067.19
  4. Step 4: Simplify right side
    71,287,897.91x = 3,968,653,484,600,501
  5. Step 5: Solve for x
    x = 3,968,653,484,600,501/71,287,897.91
  6. Step 6: Final answer
    x = 55,670,788.46

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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.