Home / 120,558,315,677.28-180,864,717,437.45-39,883,829,830.29

Finding the Fourth Proportional to 120,558,315,677.28, 180,864,717,437.45 and 39,883,829,830.29

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Solution

The fourth proportional to 120,558,315,677.28, 180,864,717,437.45 and 39,883,829,830.29 is: 59,834,757,744.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,558,315,677.28 : 180,864,717,437.45 = 39,883,829,830.29 : x
  2. Step 2: Convert to fraction form
    120,558,315,677.28/180,864,717,437.45 = 39,883,829,830.29/x
  3. Step 3: Cross multiply
    120,558,315,677.28x = 180,864,717,437.45 × 39,883,829,830.29
  4. Step 4: Simplify right side
    120,558,315,677.28x = 7,213,577,612,579,283,402,752
  5. Step 5: Solve for x
    x = 7,213,577,612,579,283,402,752/120,558,315,677.28
  6. Step 6: Final answer
    x = 59,834,757,744.04

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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.