Home / 72,486,162,845.09-100,034,023,262.06-40,371,539,280.56

Finding the Fourth Proportional to 72,486,162,845.09, 100,034,023,262.06 and 40,371,539,280.56

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Solution

The fourth proportional to 72,486,162,845.09, 100,034,023,262.06 and 40,371,539,280.56 is: 55,714,461,091.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,486,162,845.09 : 100,034,023,262.06 = 40,371,539,280.56 : x
  2. Step 2: Convert to fraction form
    72,486,162,845.09/100,034,023,262.06 = 40,371,539,280.56/x
  3. Step 3: Cross multiply
    72,486,162,845.09x = 100,034,023,262.06 × 40,371,539,280.56
  4. Step 4: Simplify right side
    72,486,162,845.09x = 4,038,527,499,516,707,864,576
  5. Step 5: Solve for x
    x = 4,038,527,499,516,707,864,576/72,486,162,845.09
  6. Step 6: Final answer
    x = 55,714,461,091.66

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1.5x scale

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.