Home / 87,857,413.28-121,249,066.40-48,700,840.32

Finding the Fourth Proportional to 87,857,413.28, 121,249,066.40 and 48,700,840.32

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Solution

The fourth proportional to 87,857,413.28, 121,249,066.40 and 48,700,840.32 is: 67,210,394.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,857,413.28 : 121,249,066.40 = 48,700,840.32 : x
  2. Step 2: Convert to fraction form
    87,857,413.28/121,249,066.40 = 48,700,840.32/x
  3. Step 3: Cross multiply
    87,857,413.28x = 121,249,066.40 × 48,700,840.32
  4. Step 4: Simplify right side
    87,857,413.28x = 5,904,931,421,695,478
  5. Step 5: Solve for x
    x = 5,904,931,421,695,478/87,857,413.28
  6. Step 6: Final answer
    x = 67,210,394.68

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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.