Home / 638,060,613.54-880,586,417.55-387,145,312.46

Finding the Fourth Proportional to 638,060,613.54, 880,586,417.55 and 387,145,312.46

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Solution

The fourth proportional to 638,060,613.54, 880,586,417.55 and 387,145,312.46 is: 534,298,617.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,060,613.54 : 880,586,417.55 = 387,145,312.46 : x
  2. Step 2: Convert to fraction form
    638,060,613.54/880,586,417.55 = 387,145,312.46/x
  3. Step 3: Cross multiply
    638,060,613.54x = 880,586,417.55 × 387,145,312.46
  4. Step 4: Simplify right side
    638,060,613.54x = 340,914,903,767,409,664
  5. Step 5: Solve for x
    x = 340,914,903,767,409,664/638,060,613.54
  6. Step 6: Final answer
    x = 534,298,617.61

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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.