Home / 260,686,904.60-391,254,305.70-115,344,133.40

Finding the Fourth Proportional to 260,686,904.60, 391,254,305.70 and 115,344,133.40

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Solution

The fourth proportional to 260,686,904.60, 391,254,305.70 and 115,344,133.40 is: 173,115,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,686,904.60 : 391,254,305.70 = 115,344,133.40 : x
  2. Step 2: Convert to fraction form
    260,686,904.60/391,254,305.70 = 115,344,133.40/x
  3. Step 3: Cross multiply
    260,686,904.60x = 391,254,305.70 × 115,344,133.40
  4. Step 4: Simplify right side
    260,686,904.60x = 45,128,888,829,985,184
  5. Step 5: Solve for x
    x = 45,128,888,829,985,184/260,686,904.60
  6. Step 6: Final answer
    x = 173,115,289.01

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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.