Home / 562,720,776.47-776,559,231.11-311,829,359.21

Finding the Fourth Proportional to 562,720,776.47, 776,559,231.11 and 311,829,359.21

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Solution

The fourth proportional to 562,720,776.47, 776,559,231.11 and 311,829,359.21 is: 430,327,042.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,720,776.47 : 776,559,231.11 = 311,829,359.21 : x
  2. Step 2: Convert to fraction form
    562,720,776.47/776,559,231.11 = 311,829,359.21/x
  3. Step 3: Cross multiply
    562,720,776.47x = 776,559,231.11 × 311,829,359.21
  4. Step 4: Simplify right side
    562,720,776.47x = 242,153,967,424,082,432
  5. Step 5: Solve for x
    x = 242,153,967,424,082,432/562,720,776.47
  6. Step 6: Final answer
    x = 430,327,042.38

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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.