Home / 630,658,718.48-870,182,808.36-352,157,390.48

Finding the Fourth Proportional to 630,658,718.48, 870,182,808.36 and 352,157,390.48

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Solution

The fourth proportional to 630,658,718.48, 870,182,808.36 and 352,157,390.48 is: 485,906,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,658,718.48 : 870,182,808.36 = 352,157,390.48 : x
  2. Step 2: Convert to fraction form
    630,658,718.48/870,182,808.36 = 352,157,390.48/x
  3. Step 3: Cross multiply
    630,658,718.48x = 870,182,808.36 × 352,157,390.48
  4. Step 4: Simplify right side
    630,658,718.48x = 306,441,307,032,615,552
  5. Step 5: Solve for x
    x = 306,441,307,032,615,552/630,658,718.48
  6. Step 6: Final answer
    x = 485,906,716.35

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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.