Home / 120,458,807.04-166,234,205.52-65,454,661.92

Finding the Fourth Proportional to 120,458,807.04, 166,234,205.52 and 65,454,661.92

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Solution

The fourth proportional to 120,458,807.04, 166,234,205.52 and 65,454,661.92 is: 90,328,004.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,458,807.04 : 166,234,205.52 = 65,454,661.92 : x
  2. Step 2: Convert to fraction form
    120,458,807.04/166,234,205.52 = 65,454,661.92/x
  3. Step 3: Cross multiply
    120,458,807.04x = 166,234,205.52 × 65,454,661.92
  4. Step 4: Simplify right side
    120,458,807.04x = 10,880,803,721,851,398
  5. Step 5: Solve for x
    x = 10,880,803,721,851,398/120,458,807.04
  6. Step 6: Final answer
    x = 90,328,004.98

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1.5x scale

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.