Home / 389,588,547.97-537,632,487.51-210,972,632.11

Finding the Fourth Proportional to 389,588,547.97, 537,632,487.51 and 210,972,632.11

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Solution

The fourth proportional to 389,588,547.97, 537,632,487.51 and 210,972,632.11 is: 291,142,390.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,588,547.97 : 537,632,487.51 = 210,972,632.11 : x
  2. Step 2: Convert to fraction form
    389,588,547.97/537,632,487.51 = 210,972,632.11/x
  3. Step 3: Cross multiply
    389,588,547.97x = 537,632,487.51 × 210,972,632.11
  4. Step 4: Simplify right side
    389,588,547.97x = 113,425,740,995,143,232
  5. Step 5: Solve for x
    x = 113,425,740,995,143,232/389,588,547.97
  6. Step 6: Final answer
    x = 291,142,390.06

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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.