Home / 587,911,155.12-810,904,334.40-386,903,986.92

Finding the Fourth Proportional to 587,911,155.12, 810,904,334.40 and 386,903,986.92

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Solution

The fourth proportional to 587,911,155.12, 810,904,334.40 and 386,903,986.92 is: 533,655,667.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,911,155.12 : 810,904,334.40 = 386,903,986.92 : x
  2. Step 2: Convert to fraction form
    587,911,155.12/810,904,334.40 = 386,903,986.92/x
  3. Step 3: Cross multiply
    587,911,155.12x = 810,904,334.40 × 386,903,986.92
  4. Step 4: Simplify right side
    587,911,155.12x = 313,742,119,990,068,928
  5. Step 5: Solve for x
    x = 313,742,119,990,068,928/587,911,155.12
  6. Step 6: Final answer
    x = 533,655,667.63

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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.