Home / 402,829,444,176.78-556,155,559,123.61-256,424,542,872.84

Finding the Fourth Proportional to 402,829,444,176.78, 556,155,559,123.61 and 256,424,542,872.84

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Solution

The fourth proportional to 402,829,444,176.78, 556,155,559,123.61 and 256,424,542,872.84 is: 354,025,598,366.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,829,444,176.78 : 556,155,559,123.61 = 256,424,542,872.84 : x
  2. Step 2: Convert to fraction form
    402,829,444,176.78/556,155,559,123.61 = 256,424,542,872.84/x
  3. Step 3: Cross multiply
    402,829,444,176.78x = 556,155,559,123.61 × 256,424,542,872.84
  4. Step 4: Simplify right side
    402,829,444,176.78x = 142,611,935,014,460,426,551,296
  5. Step 5: Solve for x
    x = 142,611,935,014,460,426,551,296/402,829,444,176.78
  6. Step 6: Final answer
    x = 354,025,598,366.83

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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.