Home / 553,471,777,809.30-830,207,666,713.95-155,978,356,095.30

Finding the Fourth Proportional to 553,471,777,809.30, 830,207,666,713.95 and 155,978,356,095.30

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Solution

The fourth proportional to 553,471,777,809.30, 830,207,666,713.95 and 155,978,356,095.30 is: 233,967,534,142.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,471,777,809.30 : 830,207,666,713.95 = 155,978,356,095.30 : x
  2. Step 2: Convert to fraction form
    553,471,777,809.30/830,207,666,713.95 = 155,978,356,095.30/x
  3. Step 3: Cross multiply
    553,471,777,809.30x = 830,207,666,713.95 × 155,978,356,095.30
  4. Step 4: Simplify right side
    553,471,777,809.30x = 129,494,427,071,756,611,092,480
  5. Step 5: Solve for x
    x = 129,494,427,071,756,611,092,480/553,471,777,809.30
  6. Step 6: Final answer
    x = 233,967,534,142.95

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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.