Home / 384,931,929.05-531,216,507.22-217,693,199.01

Finding the Fourth Proportional to 384,931,929.05, 531,216,507.22 and 217,693,199.01

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Solution

The fourth proportional to 384,931,929.05, 531,216,507.22 and 217,693,199.01 is: 300,422,521.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,931,929.05 : 531,216,507.22 = 217,693,199.01 : x
  2. Step 2: Convert to fraction form
    384,931,929.05/531,216,507.22 = 217,693,199.01/x
  3. Step 3: Cross multiply
    384,931,929.05x = 531,216,507.22 × 217,693,199.01
  4. Step 4: Simplify right side
    384,931,929.05x = 115,642,220,822,102,960
  5. Step 5: Solve for x
    x = 115,642,220,822,102,960/384,931,929.05
  6. Step 6: Final answer
    x = 300,422,521.73

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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.