Home / 260,015,288.40-390,080,669.40-87,487,232.40

Finding the Fourth Proportional to 260,015,288.40, 390,080,669.40 and 87,487,232.40

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Solution

The fourth proportional to 260,015,288.40, 390,080,669.40 and 87,487,232.40 is: 131,250,275.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,015,288.40 : 390,080,669.40 = 87,487,232.40 : x
  2. Step 2: Convert to fraction form
    260,015,288.40/390,080,669.40 = 87,487,232.40/x
  3. Step 3: Cross multiply
    260,015,288.40x = 390,080,669.40 × 87,487,232.40
  4. Step 4: Simplify right side
    260,015,288.40x = 34,127,078,178,545,368
  5. Step 5: Solve for x
    x = 34,127,078,178,545,368/260,015,288.40
  6. Step 6: Final answer
    x = 131,250,275.28

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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.