Home / 260,443,740,540.69-390,622,280,118.65-78,883,406,401.16

Finding the Fourth Proportional to 260,443,740,540.69, 390,622,280,118.65 and 78,883,406,401.16

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Solution

The fourth proportional to 260,443,740,540.69, 390,622,280,118.65 and 78,883,406,401.16 is: 118,311,985,567.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,443,740,540.69 : 390,622,280,118.65 = 78,883,406,401.16 : x
  2. Step 2: Convert to fraction form
    260,443,740,540.69/390,622,280,118.65 = 78,883,406,401.16/x
  3. Step 3: Cross multiply
    260,443,740,540.69x = 390,622,280,118.65 × 78,883,406,401.16
  4. Step 4: Simplify right side
    260,443,740,540.69x = 30,813,616,071,948,403,474,432
  5. Step 5: Solve for x
    x = 30,813,616,071,948,403,474,432/260,443,740,540.69
  6. Step 6: Final answer
    x = 118,311,985,567.32

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1.5x scale

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.