Home / 538,278,413.40-807,417,620.10-293,390,400.60

Finding the Fourth Proportional to 538,278,413.40, 807,417,620.10 and 293,390,400.60

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Solution

The fourth proportional to 538,278,413.40, 807,417,620.10 and 293,390,400.60 is: 440,085,600.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,278,413.40 : 807,417,620.10 = 293,390,400.60 : x
  2. Step 2: Convert to fraction form
    538,278,413.40/807,417,620.10 = 293,390,400.60/x
  3. Step 3: Cross multiply
    538,278,413.40x = 807,417,620.10 × 293,390,400.60
  4. Step 4: Simplify right side
    538,278,413.40x = 236,888,579,012,637,632
  5. Step 5: Solve for x
    x = 236,888,579,012,637,632/538,278,413.40
  6. Step 6: Final answer
    x = 440,085,600.90

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1.5x scale

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.