Home / 738,051,391.13-1,018,532,177.40-408,047,787.77

Finding the Fourth Proportional to 738,051,391.13, 1,018,532,177.40 and 408,047,787.77

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Solution

The fourth proportional to 738,051,391.13, 1,018,532,177.40 and 408,047,787.77 is: 563,117,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,051,391.13 : 1,018,532,177.40 = 408,047,787.77 : x
  2. Step 2: Convert to fraction form
    738,051,391.13/1,018,532,177.40 = 408,047,787.77/x
  3. Step 3: Cross multiply
    738,051,391.13x = 1,018,532,177.40 × 408,047,787.77
  4. Step 4: Simplify right side
    738,051,391.13x = 415,609,801,760,631,168
  5. Step 5: Solve for x
    x = 415,609,801,760,631,168/738,051,391.13
  6. Step 6: Final answer
    x = 563,117,699.87

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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.