Home / 28,558,940,430.39-42,838,593,194.25-8,390,283,781.46

Finding the Fourth Proportional to 28,558,940,430.39, 42,838,593,194.25 and 8,390,283,781.46

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Solution

The fourth proportional to 28,558,940,430.39, 42,838,593,194.25 and 8,390,283,781.46 is: 12,585,479,302.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558,940,430.39 : 42,838,593,194.25 = 8,390,283,781.46 : x
  2. Step 2: Convert to fraction form
    28,558,940,430.39/42,838,593,194.25 = 8,390,283,781.46/x
  3. Step 3: Cross multiply
    28,558,940,430.39x = 42,838,593,194.25 × 8,390,283,781.46
  4. Step 4: Simplify right side
    28,558,940,430.39x = 359,427,953,698,064,302,080
  5. Step 5: Solve for x
    x = 359,427,953,698,064,302,080/28,558,940,430.39
  6. Step 6: Final answer
    x = 12,585,479,302.85

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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.