Home / 663,475,437.54-915,778,211.85-385,106,642.82

Finding the Fourth Proportional to 663,475,437.54, 915,778,211.85 and 385,106,642.82

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Solution

The fourth proportional to 663,475,437.54, 915,778,211.85 and 385,106,642.82 is: 531,552,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,475,437.54 : 915,778,211.85 = 385,106,642.82 : x
  2. Step 2: Convert to fraction form
    663,475,437.54/915,778,211.85 = 385,106,642.82/x
  3. Step 3: Cross multiply
    663,475,437.54x = 915,778,211.85 × 385,106,642.82
  4. Step 4: Simplify right side
    663,475,437.54x = 352,672,272,733,256,256
  5. Step 5: Solve for x
    x = 352,672,272,733,256,256/663,475,437.54
  6. Step 6: Final answer
    x = 531,552,869.60

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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.