Home / 630,490,962.24-870,131,328.48-352,086,294.24

Finding the Fourth Proportional to 630,490,962.24, 870,131,328.48 and 352,086,294.24

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Solution

The fourth proportional to 630,490,962.24, 870,131,328.48 and 352,086,294.24 is: 485,909,130.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,490,962.24 : 870,131,328.48 = 352,086,294.24 : x
  2. Step 2: Convert to fraction form
    630,490,962.24/870,131,328.48 = 352,086,294.24/x
  3. Step 3: Cross multiply
    630,490,962.24x = 870,131,328.48 × 352,086,294.24
  4. Step 4: Simplify right side
    630,490,962.24x = 306,361,314,946,651,392
  5. Step 5: Solve for x
    x = 306,361,314,946,651,392/630,490,962.24
  6. Step 6: Final answer
    x = 485,909,130.02

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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.