Home / 1,781,421,789.60-2,672,804,530.80-862,111,965.60

Finding the Fourth Proportional to 1,781,421,789.60, 2,672,804,530.80 and 862,111,965.60

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Solution

The fourth proportional to 1,781,421,789.60, 2,672,804,530.80 and 862,111,965.60 is: 1,293,493,085.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,421,789.60 : 2,672,804,530.80 = 862,111,965.60 : x
  2. Step 2: Convert to fraction form
    1,781,421,789.60/2,672,804,530.80 = 862,111,965.60/x
  3. Step 3: Cross multiply
    1,781,421,789.60x = 2,672,804,530.80 × 862,111,965.60
  4. Step 4: Simplify right side
    1,781,421,789.60x = 2,304,256,767,712,573,952
  5. Step 5: Solve for x
    x = 2,304,256,767,712,573,952/1,781,421,789.60
  6. Step 6: Final answer
    x = 1,293,493,085.78

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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.