Home / 513,242,569.08-708,288,672.15-290,257,595.69

Finding the Fourth Proportional to 513,242,569.08, 708,288,672.15 and 290,257,595.69

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Solution

The fourth proportional to 513,242,569.08, 708,288,672.15 and 290,257,595.69 is: 400,563,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,242,569.08 : 708,288,672.15 = 290,257,595.69 : x
  2. Step 2: Convert to fraction form
    513,242,569.08/708,288,672.15 = 290,257,595.69/x
  3. Step 3: Cross multiply
    513,242,569.08x = 708,288,672.15 × 290,257,595.69
  4. Step 4: Simplify right side
    513,242,569.08x = 205,586,167,029,180,224
  5. Step 5: Solve for x
    x = 205,586,167,029,180,224/513,242,569.08
  6. Step 6: Final answer
    x = 400,563,358.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.