Home / 828,144,047.70-1,242,216,071.55-253,640,726.10

Finding the Fourth Proportional to 828,144,047.70, 1,242,216,071.55 and 253,640,726.10

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Solution

The fourth proportional to 828,144,047.70, 1,242,216,071.55 and 253,640,726.10 is: 380,461,089.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,144,047.70 : 1,242,216,071.55 = 253,640,726.10 : x
  2. Step 2: Convert to fraction form
    828,144,047.70/1,242,216,071.55 = 253,640,726.10/x
  3. Step 3: Cross multiply
    828,144,047.70x = 1,242,216,071.55 × 253,640,726.10
  4. Step 4: Simplify right side
    828,144,047.70x = 315,076,586,361,031,552
  5. Step 5: Solve for x
    x = 315,076,586,361,031,552/828,144,047.70
  6. Step 6: Final answer
    x = 380,461,089.15

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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.