Home / 278,626,756,783.68-384,498,897,744.57-161,309,348,102.98

Finding the Fourth Proportional to 278,626,756,783.68, 384,498,897,744.57 and 161,309,348,102.98

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Solution

The fourth proportional to 278,626,756,783.68, 384,498,897,744.57 and 161,309,348,102.98 is: 222,603,411,307.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,626,756,783.68 : 384,498,897,744.57 = 161,309,348,102.98 : x
  2. Step 2: Convert to fraction form
    278,626,756,783.68/384,498,897,744.57 = 161,309,348,102.98/x
  3. Step 3: Cross multiply
    278,626,756,783.68x = 384,498,897,744.57 × 161,309,348,102.98
  4. Step 4: Simplify right side
    278,626,756,783.68x = 62,023,266,541,490,963,218,432
  5. Step 5: Solve for x
    x = 62,023,266,541,490,963,218,432/278,626,756,783.68
  6. Step 6: Final answer
    x = 222,603,411,307.14

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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.