Home / 457,653,266.80-686,479,900.20-407,488,735.60

Finding the Fourth Proportional to 457,653,266.80, 686,479,900.20 and 407,488,735.60

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Solution

The fourth proportional to 457,653,266.80, 686,479,900.20 and 407,488,735.60 is: 611,233,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,653,266.80 : 686,479,900.20 = 407,488,735.60 : x
  2. Step 2: Convert to fraction form
    457,653,266.80/686,479,900.20 = 407,488,735.60/x
  3. Step 3: Cross multiply
    457,653,266.80x = 686,479,900.20 × 407,488,735.60
  4. Step 4: Simplify right side
    457,653,266.80x = 279,732,826,547,312,224
  5. Step 5: Solve for x
    x = 279,732,826,547,312,224/457,653,266.80
  6. Step 6: Final answer
    x = 611,233,103.40

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1.5x scale

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.