Home / 272,510,859.72-408,615,055.02-90,658,766.28

Finding the Fourth Proportional to 272,510,859.72, 408,615,055.02 and 90,658,766.28

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Solution

The fourth proportional to 272,510,859.72, 408,615,055.02 and 90,658,766.28 is: 135,937,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,510,859.72 : 408,615,055.02 = 90,658,766.28 : x
  2. Step 2: Convert to fraction form
    272,510,859.72/408,615,055.02 = 90,658,766.28/x
  3. Step 3: Cross multiply
    272,510,859.72x = 408,615,055.02 × 90,658,766.28
  4. Step 4: Simplify right side
    272,510,859.72x = 37,044,536,771,547,520
  5. Step 5: Solve for x
    x = 37,044,536,771,547,520/272,510,859.72
  6. Step 6: Final answer
    x = 135,937,836.79

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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.