Home / 1,011,315,876.10-1,516,357,954.95-397,164,285.70

Finding the Fourth Proportional to 1,011,315,876.10, 1,516,357,954.95 and 397,164,285.70

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Solution

The fourth proportional to 1,011,315,876.10, 1,516,357,954.95 and 397,164,285.70 is: 595,504,568.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,315,876.10 : 1,516,357,954.95 = 397,164,285.70 : x
  2. Step 2: Convert to fraction form
    1,011,315,876.10/1,516,357,954.95 = 397,164,285.70/x
  3. Step 3: Cross multiply
    1,011,315,876.10x = 1,516,357,954.95 × 397,164,285.70
  4. Step 4: Simplify right side
    1,011,315,876.10x = 602,243,224,043,229,568
  5. Step 5: Solve for x
    x = 602,243,224,043,229,568/1,011,315,876.10
  6. Step 6: Final answer
    x = 595,504,568.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.