Home / 125,730,628.40-188,811,143.40-68,335,000.40

Finding the Fourth Proportional to 125,730,628.40, 188,811,143.40 and 68,335,000.40

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Solution

The fourth proportional to 125,730,628.40, 188,811,143.40 and 68,335,000.40 is: 102,619,462.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,730,628.40 : 188,811,143.40 = 68,335,000.40 : x
  2. Step 2: Convert to fraction form
    125,730,628.40/188,811,143.40 = 68,335,000.40/x
  3. Step 3: Cross multiply
    125,730,628.40x = 188,811,143.40 × 68,335,000.40
  4. Step 4: Simplify right side
    125,730,628.40x = 12,902,409,559,763,458
  5. Step 5: Solve for x
    x = 12,902,409,559,763,458/125,730,628.40
  6. Step 6: Final answer
    x = 102,619,462.93

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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.