Home / 457,782,310.60-686,673,465.90-407,617,779.40

Finding the Fourth Proportional to 457,782,310.60, 686,673,465.90 and 407,617,779.40

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Solution

The fourth proportional to 457,782,310.60, 686,673,465.90 and 407,617,779.40 is: 611,426,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,782,310.60 : 686,673,465.90 = 407,617,779.40 : x
  2. Step 2: Convert to fraction form
    457,782,310.60/686,673,465.90 = 407,617,779.40/x
  3. Step 3: Cross multiply
    457,782,310.60x = 686,673,465.90 × 407,617,779.40
  4. Step 4: Simplify right side
    457,782,310.60x = 279,900,313,343,059,584
  5. Step 5: Solve for x
    x = 279,900,313,343,059,584/457,782,310.60
  6. Step 6: Final answer
    x = 611,426,669.10

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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.