Home / 86,985,946.32-120,037,377.56-47,825,393.10

Finding the Fourth Proportional to 86,985,946.32, 120,037,377.56 and 47,825,393.10

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Solution

The fourth proportional to 86,985,946.32, 120,037,377.56 and 47,825,393.10 is: 65,997,267.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,985,946.32 : 120,037,377.56 = 47,825,393.10 : x
  2. Step 2: Convert to fraction form
    86,985,946.32/120,037,377.56 = 47,825,393.10/x
  3. Step 3: Cross multiply
    86,985,946.32x = 120,037,377.56 × 47,825,393.10
  4. Step 4: Simplify right side
    86,985,946.32x = 5,740,834,768,500,119
  5. Step 5: Solve for x
    x = 5,740,834,768,500,119/86,985,946.32
  6. Step 6: Final answer
    x = 65,997,267.51

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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.