Home / 232,591,054.40-320,977,807.20-128,172,862.40

Finding the Fourth Proportional to 232,591,054.40, 320,977,807.20 and 128,172,862.40

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Solution

The fourth proportional to 232,591,054.40, 320,977,807.20 and 128,172,862.40 is: 176,879,736.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,591,054.40 : 320,977,807.20 = 128,172,862.40 : x
  2. Step 2: Convert to fraction form
    232,591,054.40/320,977,807.20 = 128,172,862.40/x
  3. Step 3: Cross multiply
    232,591,054.40x = 320,977,807.20 × 128,172,862.40
  4. Step 4: Simplify right side
    232,591,054.40x = 41,140,644,315,699,328
  5. Step 5: Solve for x
    x = 41,140,644,315,699,328/232,591,054.40
  6. Step 6: Final answer
    x = 176,879,736.08

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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.