Home / 105,391,260-145,439,938.80-57,156,764

Finding the Fourth Proportional to 105,391,260, 145,439,938.80 and 57,156,764

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Solution

The fourth proportional to 105,391,260, 145,439,938.80 and 57,156,764 is: 78,876,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,391,260 : 145,439,938.80 = 57,156,764 : x
  2. Step 2: Convert to fraction form
    105,391,260/145,439,938.80 = 57,156,764/x
  3. Step 3: Cross multiply
    105,391,260x = 145,439,938.80 × 57,156,764
  4. Step 4: Simplify right side
    105,391,260x = 8,312,876,258,166,044
  5. Step 5: Solve for x
    x = 8,312,876,258,166,044/105,391,260
  6. Step 6: Final answer
    x = 78,876,334.32

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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.