Home / 743,892,372.16-1,026,580,916.88-409,403,406.88

Finding the Fourth Proportional to 743,892,372.16, 1,026,580,916.88 and 409,403,406.88

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Solution

The fourth proportional to 743,892,372.16, 1,026,580,916.88 and 409,403,406.88 is: 564,981,898.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,892,372.16 : 1,026,580,916.88 = 409,403,406.88 : x
  2. Step 2: Convert to fraction form
    743,892,372.16/1,026,580,916.88 = 409,403,406.88/x
  3. Step 3: Cross multiply
    743,892,372.16x = 1,026,580,916.88 × 409,403,406.88
  4. Step 4: Simplify right side
    743,892,372.16x = 420,285,724,808,666,112
  5. Step 5: Solve for x
    x = 420,285,724,808,666,112/743,892,372.16
  6. Step 6: Final answer
    x = 564,981,898.64

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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.