Home / 538,832,021.60-808,248,032.40-422,605,874.90

Finding the Fourth Proportional to 538,832,021.60, 808,248,032.40 and 422,605,874.90

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Solution

The fourth proportional to 538,832,021.60, 808,248,032.40 and 422,605,874.90 is: 633,908,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,832,021.60 : 808,248,032.40 = 422,605,874.90 : x
  2. Step 2: Convert to fraction form
    538,832,021.60/808,248,032.40 = 422,605,874.90/x
  3. Step 3: Cross multiply
    538,832,021.60x = 808,248,032.40 × 422,605,874.90
  4. Step 4: Simplify right side
    538,832,021.60x = 341,570,366,868,605,504
  5. Step 5: Solve for x
    x = 341,570,366,868,605,504/538,832,021.60
  6. Step 6: Final answer
    x = 633,908,812.35

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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.