Home / 1,561,931,872.88-2,155,460,069.52-857,095,647.08

Finding the Fourth Proportional to 1,561,931,872.88, 2,155,460,069.52 and 857,095,647.08

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Solution

The fourth proportional to 1,561,931,872.88, 2,155,460,069.52 and 857,095,647.08 is: 1,182,788,747.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,931,872.88 : 2,155,460,069.52 = 857,095,647.08 : x
  2. Step 2: Convert to fraction form
    1,561,931,872.88/2,155,460,069.52 = 857,095,647.08/x
  3. Step 3: Cross multiply
    1,561,931,872.88x = 2,155,460,069.52 × 857,095,647.08
  4. Step 4: Simplify right side
    1,561,931,872.88x = 1,847,435,443,040,346,368
  5. Step 5: Solve for x
    x = 1,847,435,443,040,346,368/1,561,931,872.88
  6. Step 6: Final answer
    x = 1,182,788,747.14

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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.