Home / 76,379,931.27-105,413,280.51-42,894,913.38

Finding the Fourth Proportional to 76,379,931.27, 105,413,280.51 and 42,894,913.38

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Solution

The fourth proportional to 76,379,931.27, 105,413,280.51 and 42,894,913.38 is: 59,200,021.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,379,931.27 : 105,413,280.51 = 42,894,913.38 : x
  2. Step 2: Convert to fraction form
    76,379,931.27/105,413,280.51 = 42,894,913.38/x
  3. Step 3: Cross multiply
    76,379,931.27x = 105,413,280.51 × 42,894,913.38
  4. Step 4: Simplify right side
    76,379,931.27x = 4,521,693,536,578,093
  5. Step 5: Solve for x
    x = 4,521,693,536,578,093/76,379,931.27
  6. Step 6: Final answer
    x = 59,200,021.02

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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.