Home / 1,038,006,427.90-1,557,009,641.85-310,995,139.90

Finding the Fourth Proportional to 1,038,006,427.90, 1,557,009,641.85 and 310,995,139.90

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Solution

The fourth proportional to 1,038,006,427.90, 1,557,009,641.85 and 310,995,139.90 is: 466,492,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,006,427.90 : 1,557,009,641.85 = 310,995,139.90 : x
  2. Step 2: Convert to fraction form
    1,038,006,427.90/1,557,009,641.85 = 310,995,139.90/x
  3. Step 3: Cross multiply
    1,038,006,427.90x = 1,557,009,641.85 × 310,995,139.90
  4. Step 4: Simplify right side
    1,038,006,427.90x = 484,222,431,392,789,568
  5. Step 5: Solve for x
    x = 484,222,431,392,789,568/1,038,006,427.90
  6. Step 6: Final answer
    x = 466,492,709.85

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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.