Home / 72,392,118.51-99,900,413.82-39,350,401.74

Finding the Fourth Proportional to 72,392,118.51, 99,900,413.82 and 39,350,401.74

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Solution

The fourth proportional to 72,392,118.51, 99,900,413.82 and 39,350,401.74 is: 54,303,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,392,118.51 : 99,900,413.82 = 39,350,401.74 : x
  2. Step 2: Convert to fraction form
    72,392,118.51/99,900,413.82 = 39,350,401.74/x
  3. Step 3: Cross multiply
    72,392,118.51x = 99,900,413.82 × 39,350,401.74
  4. Step 4: Simplify right side
    72,392,118.51x = 3,931,121,417,206,767
  5. Step 5: Solve for x
    x = 3,931,121,417,206,767/72,392,118.51
  6. Step 6: Final answer
    x = 54,303,168.60

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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.