Home / 72,931,103,129.79-109,434,052,443.90-35,189,865,323.41

Finding the Fourth Proportional to 72,931,103,129.79, 109,434,052,443.90 and 35,189,865,323.41

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Solution

The fourth proportional to 72,931,103,129.79, 109,434,052,443.90 and 35,189,865,323.41 is: 52,802,842,710.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,931,103,129.79 : 109,434,052,443.90 = 35,189,865,323.41 : x
  2. Step 2: Convert to fraction form
    72,931,103,129.79/109,434,052,443.90 = 35,189,865,323.41/x
  3. Step 3: Cross multiply
    72,931,103,129.79x = 109,434,052,443.90 × 35,189,865,323.41
  4. Step 4: Simplify right side
    72,931,103,129.79x = 3,850,969,567,295,608,717,312
  5. Step 5: Solve for x
    x = 3,850,969,567,295,608,717,312/72,931,103,129.79
  6. Step 6: Final answer
    x = 52,802,842,710.91

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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.