Home / 156,153,904.20-215,223,413.04-103,849,480.98

Finding the Fourth Proportional to 156,153,904.20, 215,223,413.04 and 103,849,480.98

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Solution

The fourth proportional to 156,153,904.20, 215,223,413.04 and 103,849,480.98 is: 143,133,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,153,904.20 : 215,223,413.04 = 103,849,480.98 : x
  2. Step 2: Convert to fraction form
    156,153,904.20/215,223,413.04 = 103,849,480.98/x
  3. Step 3: Cross multiply
    156,153,904.20x = 215,223,413.04 × 103,849,480.98
  4. Step 4: Simplify right side
    156,153,904.20x = 22,350,839,738,948,164
  5. Step 5: Solve for x
    x = 22,350,839,738,948,164/156,153,904.20
  6. Step 6: Final answer
    x = 143,133,403.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.