Home / 431,038,688-646,563,635.04-143,824,352

Finding the Fourth Proportional to 431,038,688, 646,563,635.04 and 143,824,352

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Solution

The fourth proportional to 431,038,688, 646,563,635.04 and 143,824,352 is: 215,738,397.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,038,688 : 646,563,635.04 = 143,824,352 : x
  2. Step 2: Convert to fraction form
    431,038,688/646,563,635.04 = 143,824,352/x
  3. Step 3: Cross multiply
    431,038,688x = 646,563,635.04 × 143,824,352
  4. Step 4: Simplify right side
    431,038,688x = 92,991,595,836,392,496
  5. Step 5: Solve for x
    x = 92,991,595,836,392,496/431,038,688
  6. Step 6: Final answer
    x = 215,738,397.56

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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.