Home / 125,209,567.76-187,814,357.47-85,778,939.47

Finding the Fourth Proportional to 125,209,567.76, 187,814,357.47 and 85,778,939.47

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Solution

The fourth proportional to 125,209,567.76, 187,814,357.47 and 85,778,939.47 is: 128,668,413.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,209,567.76 : 187,814,357.47 = 85,778,939.47 : x
  2. Step 2: Convert to fraction form
    125,209,567.76/187,814,357.47 = 85,778,939.47/x
  3. Step 3: Cross multiply
    125,209,567.76x = 187,814,357.47 × 85,778,939.47
  4. Step 4: Simplify right side
    125,209,567.76x = 16,110,516,401,519,326
  5. Step 5: Solve for x
    x = 16,110,516,401,519,326/125,209,567.76
  6. Step 6: Final answer
    x = 128,668,413.21

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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.