Home / 427,565,570.40-641,348,355.60-366,343,567.20

Finding the Fourth Proportional to 427,565,570.40, 641,348,355.60 and 366,343,567.20

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Solution

The fourth proportional to 427,565,570.40, 641,348,355.60 and 366,343,567.20 is: 549,515,350.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,565,570.40 : 641,348,355.60 = 366,343,567.20 : x
  2. Step 2: Convert to fraction form
    427,565,570.40/641,348,355.60 = 366,343,567.20/x
  3. Step 3: Cross multiply
    427,565,570.40x = 641,348,355.60 × 366,343,567.20
  4. Step 4: Simplify right side
    427,565,570.40x = 234,953,844,408,358,112
  5. Step 5: Solve for x
    x = 234,953,844,408,358,112/427,565,570.40
  6. Step 6: Final answer
    x = 549,515,350.80

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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.