Home / 243,805,307.28-336,433,856.04-139,387,779.60

Finding the Fourth Proportional to 243,805,307.28, 336,433,856.04 and 139,387,779.60

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Solution

The fourth proportional to 243,805,307.28, 336,433,856.04 and 139,387,779.60 is: 192,345,149.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,805,307.28 : 336,433,856.04 = 139,387,779.60 : x
  2. Step 2: Convert to fraction form
    243,805,307.28/336,433,856.04 = 139,387,779.60/x
  3. Step 3: Cross multiply
    243,805,307.28x = 336,433,856.04 × 139,387,779.60
  4. Step 4: Simplify right side
    243,805,307.28x = 46,894,768,175,681,648
  5. Step 5: Solve for x
    x = 46,894,768,175,681,648/243,805,307.28
  6. Step 6: Final answer
    x = 192,345,149.08

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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.