Home / 260,068,985.40-390,103,478.10-236,260,428.60

Finding the Fourth Proportional to 260,068,985.40, 390,103,478.10 and 236,260,428.60

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Solution

The fourth proportional to 260,068,985.40, 390,103,478.10 and 236,260,428.60 is: 354,390,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,068,985.40 : 390,103,478.10 = 236,260,428.60 : x
  2. Step 2: Convert to fraction form
    260,068,985.40/390,103,478.10 = 236,260,428.60/x
  3. Step 3: Cross multiply
    260,068,985.40x = 390,103,478.10 × 236,260,428.60
  4. Step 4: Simplify right side
    260,068,985.40x = 92,166,014,934,256,720
  5. Step 5: Solve for x
    x = 92,166,014,934,256,720/260,068,985.40
  6. Step 6: Final answer
    x = 354,390,642.90

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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.