Home / 139,699,287.40-209,548,931.10-105,687,063.40

Finding the Fourth Proportional to 139,699,287.40, 209,548,931.10 and 105,687,063.40

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Solution

The fourth proportional to 139,699,287.40, 209,548,931.10 and 105,687,063.40 is: 158,530,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,699,287.40 : 209,548,931.10 = 105,687,063.40 : x
  2. Step 2: Convert to fraction form
    139,699,287.40/209,548,931.10 = 105,687,063.40/x
  3. Step 3: Cross multiply
    139,699,287.40x = 209,548,931.10 × 105,687,063.40
  4. Step 4: Simplify right side
    139,699,287.40x = 22,146,611,166,567,932
  5. Step 5: Solve for x
    x = 22,146,611,166,567,932/139,699,287.40
  6. Step 6: Final answer
    x = 158,530,595.10

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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.