Home / 125,712,007.20-188,428,042.80-49,009,543.20

Finding the Fourth Proportional to 125,712,007.20, 188,428,042.80 and 49,009,543.20

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Solution

The fourth proportional to 125,712,007.20, 188,428,042.80 and 49,009,543.20 is: 73,459,747.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,712,007.20 : 188,428,042.80 = 49,009,543.20 : x
  2. Step 2: Convert to fraction form
    125,712,007.20/188,428,042.80 = 49,009,543.20/x
  3. Step 3: Cross multiply
    125,712,007.20x = 188,428,042.80 × 49,009,543.20
  4. Step 4: Simplify right side
    125,712,007.20x = 9,234,772,303,698,050
  5. Step 5: Solve for x
    x = 9,234,772,303,698,050/125,712,007.20
  6. Step 6: Final answer
    x = 73,459,747.48

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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.