Home / 987,802,959.20-1,362,779,242.09-570,034,520.96

Finding the Fourth Proportional to 987,802,959.20, 1,362,779,242.09 and 570,034,520.96

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Solution

The fourth proportional to 987,802,959.20, 1,362,779,242.09 and 570,034,520.96 is: 786,423,248.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,802,959.20 : 1,362,779,242.09 = 570,034,520.96 : x
  2. Step 2: Convert to fraction form
    987,802,959.20/1,362,779,242.09 = 570,034,520.96/x
  3. Step 3: Cross multiply
    987,802,959.20x = 1,362,779,242.09 × 570,034,520.96
  4. Step 4: Simplify right side
    987,802,959.20x = 776,831,212,430,766,208
  5. Step 5: Solve for x
    x = 776,831,212,430,766,208/987,802,959.20
  6. Step 6: Final answer
    x = 786,423,248.89

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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.