Home / 260,472,830.40-390,373,322.40-199,586,750.40

Finding the Fourth Proportional to 260,472,830.40, 390,373,322.40 and 199,586,750.40

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Solution

The fourth proportional to 260,472,830.40, 390,373,322.40 and 199,586,750.40 is: 299,122,725.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,472,830.40 : 390,373,322.40 = 199,586,750.40 : x
  2. Step 2: Convert to fraction form
    260,472,830.40/390,373,322.40 = 199,586,750.40/x
  3. Step 3: Cross multiply
    260,472,830.40x = 390,373,322.40 × 199,586,750.40
  4. Step 4: Simplify right side
    260,472,830.40x = 77,913,342,860,667,520
  5. Step 5: Solve for x
    x = 77,913,342,860,667,520/260,472,830.40
  6. Step 6: Final answer
    x = 299,122,725.16

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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.