Home / 709,766,501.94-979,530,792.12-408,444,178.86

Finding the Fourth Proportional to 709,766,501.94, 979,530,792.12 and 408,444,178.86

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Solution

The fourth proportional to 709,766,501.94, 979,530,792.12 and 408,444,178.86 is: 563,683,477.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,766,501.94 : 979,530,792.12 = 408,444,178.86 : x
  2. Step 2: Convert to fraction form
    709,766,501.94/979,530,792.12 = 408,444,178.86/x
  3. Step 3: Cross multiply
    709,766,501.94x = 979,530,792.12 × 408,444,178.86
  4. Step 4: Simplify right side
    709,766,501.94x = 400,083,650,055,538,752
  5. Step 5: Solve for x
    x = 400,083,650,055,538,752/709,766,501.94
  6. Step 6: Final answer
    x = 563,683,477.54

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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.