Home / 125,712,008.70-188,428,045.05-49,009,544.70

Finding the Fourth Proportional to 125,712,008.70, 188,428,045.05 and 49,009,544.70

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Solution

The fourth proportional to 125,712,008.70, 188,428,045.05 and 49,009,544.70 is: 73,459,749.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,712,008.70 : 188,428,045.05 = 49,009,544.70 : x
  2. Step 2: Convert to fraction form
    125,712,008.70/188,428,045.05 = 49,009,544.70/x
  3. Step 3: Cross multiply
    125,712,008.70x = 188,428,045.05 × 49,009,544.70
  4. Step 4: Simplify right side
    125,712,008.70x = 9,234,772,696,611,590
  5. Step 5: Solve for x
    x = 9,234,772,696,611,590/125,712,008.70
  6. Step 6: Final answer
    x = 73,459,749.73

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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.