Home / 125,919,618.80-188,879,428.20-45,148,751.60

Finding the Fourth Proportional to 125,919,618.80, 188,879,428.20 and 45,148,751.60

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Solution

The fourth proportional to 125,919,618.80, 188,879,428.20 and 45,148,751.60 is: 67,723,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,919,618.80 : 188,879,428.20 = 45,148,751.60 : x
  2. Step 2: Convert to fraction form
    125,919,618.80/188,879,428.20 = 45,148,751.60/x
  3. Step 3: Cross multiply
    125,919,618.80x = 188,879,428.20 × 45,148,751.60
  4. Step 4: Simplify right side
    125,919,618.80x = 8,527,670,386,151,835
  5. Step 5: Solve for x
    x = 8,527,670,386,151,835/125,919,618.80
  6. Step 6: Final answer
    x = 67,723,127.40

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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.