Home / 74,987,378.04-112,371,021.42-42,261,656.52

Finding the Fourth Proportional to 74,987,378.04, 112,371,021.42 and 42,261,656.52

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Solution

The fourth proportional to 74,987,378.04, 112,371,021.42 and 42,261,656.52 is: 63,330,464.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,987,378.04 : 112,371,021.42 = 42,261,656.52 : x
  2. Step 2: Convert to fraction form
    74,987,378.04/112,371,021.42 = 42,261,656.52/x
  3. Step 3: Cross multiply
    74,987,378.04x = 112,371,021.42 × 42,261,656.52
  4. Step 4: Simplify right side
    74,987,378.04x = 4,748,985,510,053,603
  5. Step 5: Solve for x
    x = 4,748,985,510,053,603/74,987,378.04
  6. Step 6: Final answer
    x = 63,330,464.86

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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.