Home / 81,280,031.76-112,137,487.20-48,214,953.60

Finding the Fourth Proportional to 81,280,031.76, 112,137,487.20 and 48,214,953.60

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Solution

The fourth proportional to 81,280,031.76, 112,137,487.20 and 48,214,953.60 is: 66,519,459.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,280,031.76 : 112,137,487.20 = 48,214,953.60 : x
  2. Step 2: Convert to fraction form
    81,280,031.76/112,137,487.20 = 48,214,953.60/x
  3. Step 3: Cross multiply
    81,280,031.76x = 112,137,487.20 × 48,214,953.60
  4. Step 4: Simplify right side
    81,280,031.76x = 5,406,703,742,168,594
  5. Step 5: Solve for x
    x = 5,406,703,742,168,594/81,280,031.76
  6. Step 6: Final answer
    x = 66,519,459.02

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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.