Home / 472,392,409.20-708,588,613.80-355,995,020.40

Finding the Fourth Proportional to 472,392,409.20, 708,588,613.80 and 355,995,020.40

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Solution

The fourth proportional to 472,392,409.20, 708,588,613.80 and 355,995,020.40 is: 533,992,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,409.20 : 708,588,613.80 = 355,995,020.40 : x
  2. Step 2: Convert to fraction form
    472,392,409.20/708,588,613.80 = 355,995,020.40/x
  3. Step 3: Cross multiply
    472,392,409.20x = 708,588,613.80 × 355,995,020.40
  4. Step 4: Simplify right side
    472,392,409.20x = 252,254,018,024,938,688
  5. Step 5: Solve for x
    x = 252,254,018,024,938,688/472,392,409.20
  6. Step 6: Final answer
    x = 533,992,530.60

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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.