Home / 912,479,247.36-1,368,172,274.40-290,425,785.12

Finding the Fourth Proportional to 912,479,247.36, 1,368,172,274.40 and 290,425,785.12

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Solution

The fourth proportional to 912,479,247.36, 1,368,172,274.40 and 290,425,785.12 is: 435,464,705.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,479,247.36 : 1,368,172,274.40 = 290,425,785.12 : x
  2. Step 2: Convert to fraction form
    912,479,247.36/1,368,172,274.40 = 290,425,785.12/x
  3. Step 3: Cross multiply
    912,479,247.36x = 1,368,172,274.40 × 290,425,785.12
  4. Step 4: Simplify right side
    912,479,247.36x = 397,352,506,972,036,096
  5. Step 5: Solve for x
    x = 397,352,506,972,036,096/912,479,247.36
  6. Step 6: Final answer
    x = 435,464,705.77

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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.