Home / 642,744,389.14-886,996,975.62-360,549,384.46

Finding the Fourth Proportional to 642,744,389.14, 886,996,975.62 and 360,549,384.46

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Solution

The fourth proportional to 642,744,389.14, 886,996,975.62 and 360,549,384.46 is: 497,563,602.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,744,389.14 : 886,996,975.62 = 360,549,384.46 : x
  2. Step 2: Convert to fraction form
    642,744,389.14/886,996,975.62 = 360,549,384.46/x
  3. Step 3: Cross multiply
    642,744,389.14x = 886,996,975.62 × 360,549,384.46
  4. Step 4: Simplify right side
    642,744,389.14x = 319,806,213,577,672,640
  5. Step 5: Solve for x
    x = 319,806,213,577,672,640/642,744,389.14
  6. Step 6: Final answer
    x = 497,563,602.24

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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.