Home / 289,710,002.10-434,565,003.15-257,965,259.70

Finding the Fourth Proportional to 289,710,002.10, 434,565,003.15 and 257,965,259.70

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Solution

The fourth proportional to 289,710,002.10, 434,565,003.15 and 257,965,259.70 is: 386,947,889.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,710,002.10 : 434,565,003.15 = 257,965,259.70 : x
  2. Step 2: Convert to fraction form
    289,710,002.10/434,565,003.15 = 257,965,259.70/x
  3. Step 3: Cross multiply
    289,710,002.10x = 434,565,003.15 × 257,965,259.70
  4. Step 4: Simplify right side
    289,710,002.10x = 112,102,673,894,121,056
  5. Step 5: Solve for x
    x = 112,102,673,894,121,056/289,710,002.10
  6. Step 6: Final answer
    x = 386,947,889.55

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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.