Home / 385,900,614.02-532,546,210.24-209,688,612.42

Finding the Fourth Proportional to 385,900,614.02, 532,546,210.24 and 209,688,612.42

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Solution

The fourth proportional to 385,900,614.02, 532,546,210.24 and 209,688,612.42 is: 289,372,112.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,900,614.02 : 532,546,210.24 = 209,688,612.42 : x
  2. Step 2: Convert to fraction form
    385,900,614.02/532,546,210.24 = 209,688,612.42/x
  3. Step 3: Cross multiply
    385,900,614.02x = 532,546,210.24 × 209,688,612.42
  4. Step 4: Simplify right side
    385,900,614.02x = 111,668,875,874,755,184
  5. Step 5: Solve for x
    x = 111,668,875,874,755,184/385,900,614.02
  6. Step 6: Final answer
    x = 289,372,112.45

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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.