Home / 429,689,298.16-643,249,271.04-263,168,481.61

Finding the Fourth Proportional to 429,689,298.16, 643,249,271.04 and 263,168,481.61

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Solution

The fourth proportional to 429,689,298.16, 643,249,271.04 and 263,168,481.61 is: 393,965,906.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,689,298.16 : 643,249,271.04 = 263,168,481.61 : x
  2. Step 2: Convert to fraction form
    429,689,298.16/643,249,271.04 = 263,168,481.61/x
  3. Step 3: Cross multiply
    429,689,298.16x = 643,249,271.04 × 263,168,481.61
  4. Step 4: Simplify right side
    429,689,298.16x = 169,282,933,956,336,160
  5. Step 5: Solve for x
    x = 169,282,933,956,336,160/429,689,298.16
  6. Step 6: Final answer
    x = 393,965,906.72

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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.