Home / 402,703,568.90-555,416,094.48-261,620,246.10

Finding the Fourth Proportional to 402,703,568.90, 555,416,094.48 and 261,620,246.10

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Solution

The fourth proportional to 402,703,568.90, 555,416,094.48 and 261,620,246.10 is: 360,831,406.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,703,568.90 : 555,416,094.48 = 261,620,246.10 : x
  2. Step 2: Convert to fraction form
    402,703,568.90/555,416,094.48 = 261,620,246.10/x
  3. Step 3: Cross multiply
    402,703,568.90x = 555,416,094.48 × 261,620,246.10
  4. Step 4: Simplify right side
    402,703,568.90x = 145,308,095,325,758,464
  5. Step 5: Solve for x
    x = 145,308,095,325,758,464/402,703,568.90
  6. Step 6: Final answer
    x = 360,831,406.89

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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.