Home / 660,301,641.40-988,100,999.70-574,977,148.60

Finding the Fourth Proportional to 660,301,641.40, 988,100,999.70 and 574,977,148.60

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Solution

The fourth proportional to 660,301,641.40, 988,100,999.70 and 574,977,148.60 is: 860,418,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,301,641.40 : 988,100,999.70 = 574,977,148.60 : x
  2. Step 2: Convert to fraction form
    660,301,641.40/988,100,999.70 = 574,977,148.60/x
  3. Step 3: Cross multiply
    660,301,641.40x = 988,100,999.70 × 574,977,148.60
  4. Step 4: Simplify right side
    660,301,641.40x = 568,135,495,336,315,520
  5. Step 5: Solve for x
    x = 568,135,495,336,315,520/660,301,641.40
  6. Step 6: Final answer
    x = 860,418,117.59

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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.