Home / 103,558,172.31-142,913,307.60-56,518,262.88

Finding the Fourth Proportional to 103,558,172.31, 142,913,307.60 and 56,518,262.88

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Solution

The fourth proportional to 103,558,172.31, 142,913,307.60 and 56,518,262.88 is: 77,996,856.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,558,172.31 : 142,913,307.60 = 56,518,262.88 : x
  2. Step 2: Convert to fraction form
    103,558,172.31/142,913,307.60 = 56,518,262.88/x
  3. Step 3: Cross multiply
    103,558,172.31x = 142,913,307.60 × 56,518,262.88
  4. Step 4: Simplify right side
    103,558,172.31x = 8,077,211,887,987,102
  5. Step 5: Solve for x
    x = 8,077,211,887,987,102/103,558,172.31
  6. Step 6: Final answer
    x = 77,996,856.34

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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.