Home / 72,171,841.60-108,257,762.40-70,046,077.60

Finding the Fourth Proportional to 72,171,841.60, 108,257,762.40 and 70,046,077.60

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Solution

The fourth proportional to 72,171,841.60, 108,257,762.40 and 70,046,077.60 is: 105,069,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,841.60 : 108,257,762.40 = 70,046,077.60 : x
  2. Step 2: Convert to fraction form
    72,171,841.60/108,257,762.40 = 70,046,077.60/x
  3. Step 3: Cross multiply
    72,171,841.60x = 108,257,762.40 × 70,046,077.60
  4. Step 4: Simplify right side
    72,171,841.60x = 7,583,031,625,872,762
  5. Step 5: Solve for x
    x = 7,583,031,625,872,762/72,171,841.60
  6. Step 6: Final answer
    x = 105,069,116.40

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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.