Home / 820,142,275.48-1,131,799,339.74-443,798,866.60

Finding the Fourth Proportional to 820,142,275.48, 1,131,799,339.74 and 443,798,866.60

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Solution

The fourth proportional to 820,142,275.48, 1,131,799,339.74 and 443,798,866.60 is: 612,444,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,142,275.48 : 1,131,799,339.74 = 443,798,866.60 : x
  2. Step 2: Convert to fraction form
    820,142,275.48/1,131,799,339.74 = 443,798,866.60/x
  3. Step 3: Cross multiply
    820,142,275.48x = 1,131,799,339.74 × 443,798,866.60
  4. Step 4: Simplify right side
    820,142,275.48x = 502,291,264,195,240,384
  5. Step 5: Solve for x
    x = 502,291,264,195,240,384/820,142,275.48
  6. Step 6: Final answer
    x = 612,444,059.05

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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.