Home / 521,520,778,887.90-782,281,168,331.85-501,684,849,851.10

Finding the Fourth Proportional to 521,520,778,887.90, 782,281,168,331.85 and 501,684,849,851.10

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Solution

The fourth proportional to 521,520,778,887.90, 782,281,168,331.85 and 501,684,849,851.10 is: 752,527,274,776.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,778,887.90 : 782,281,168,331.85 = 501,684,849,851.10 : x
  2. Step 2: Convert to fraction form
    521,520,778,887.90/782,281,168,331.85 = 501,684,849,851.10/x
  3. Step 3: Cross multiply
    521,520,778,887.90x = 782,281,168,331.85 × 501,684,849,851.10
  4. Step 4: Simplify right side
    521,520,778,887.90x = 392,458,610,475,907,225,223,168
  5. Step 5: Solve for x
    x = 392,458,610,475,907,225,223,168/521,520,778,887.90
  6. Step 6: Final answer
    x = 752,527,274,776.65

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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.