Home / 72,811,034.20-100,478,547.93-39,771,270.69

Finding the Fourth Proportional to 72,811,034.20, 100,478,547.93 and 39,771,270.69

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Solution

The fourth proportional to 72,811,034.20, 100,478,547.93 and 39,771,270.69 is: 54,883,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,811,034.20 : 100,478,547.93 = 39,771,270.69 : x
  2. Step 2: Convert to fraction form
    72,811,034.20/100,478,547.93 = 39,771,270.69/x
  3. Step 3: Cross multiply
    72,811,034.20x = 100,478,547.93 × 39,771,270.69
  4. Step 4: Simplify right side
    72,811,034.20x = 3,996,159,527,759,777
  5. Step 5: Solve for x
    x = 3,996,159,527,759,777/72,811,034.20
  6. Step 6: Final answer
    x = 54,883,982.51

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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.