Home / 640,178,151.61-883,446,745.67-346,822,719.61

Finding the Fourth Proportional to 640,178,151.61, 883,446,745.67 and 346,822,719.61

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Solution

The fourth proportional to 640,178,151.61, 883,446,745.67 and 346,822,719.61 is: 478,615,838.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,178,151.61 : 883,446,745.67 = 346,822,719.61 : x
  2. Step 2: Convert to fraction form
    640,178,151.61/883,446,745.67 = 346,822,719.61/x
  3. Step 3: Cross multiply
    640,178,151.61x = 883,446,745.67 × 346,822,719.61
  4. Step 4: Simplify right side
    640,178,151.61x = 306,399,402,963,873,408
  5. Step 5: Solve for x
    x = 306,399,402,963,873,408/640,178,151.61
  6. Step 6: Final answer
    x = 478,615,838.72

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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.