Home / 498,569,856,725.92-688,364,144,451.68-315,829,124,485.60

Finding the Fourth Proportional to 498,569,856,725.92, 688,364,144,451.68 and 315,829,124,485.60

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Solution

The fourth proportional to 498,569,856,725.92, 688,364,144,451.68 and 315,829,124,485.60 is: 436,058,141,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,569,856,725.92 : 688,364,144,451.68 = 315,829,124,485.60 : x
  2. Step 2: Convert to fraction form
    498,569,856,725.92/688,364,144,451.68 = 315,829,124,485.60/x
  3. Step 3: Cross multiply
    498,569,856,725.92x = 688,364,144,451.68 × 315,829,124,485.60
  4. Step 4: Simplify right side
    498,569,856,725.92x = 217,405,445,069,453,180,010,496
  5. Step 5: Solve for x
    x = 217,405,445,069,453,180,010,496/498,569,856,725.92
  6. Step 6: Final answer
    x = 436,058,141,374.90

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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.