Home / 389,881,965.60-584,822,948.40-347,555,642.40

Finding the Fourth Proportional to 389,881,965.60, 584,822,948.40 and 347,555,642.40

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Solution

The fourth proportional to 389,881,965.60, 584,822,948.40 and 347,555,642.40 is: 521,333,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,881,965.60 : 584,822,948.40 = 347,555,642.40 : x
  2. Step 2: Convert to fraction form
    389,881,965.60/584,822,948.40 = 347,555,642.40/x
  3. Step 3: Cross multiply
    389,881,965.60x = 584,822,948.40 × 347,555,642.40
  4. Step 4: Simplify right side
    389,881,965.60x = 203,258,515,521,424,032
  5. Step 5: Solve for x
    x = 203,258,515,521,424,032/389,881,965.60
  6. Step 6: Final answer
    x = 521,333,463.60

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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.