Home / 686,948,832.80-1,030,068,663.60-202,211,655.20

Finding the Fourth Proportional to 686,948,832.80, 1,030,068,663.60 and 202,211,655.20

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Solution

The fourth proportional to 686,948,832.80, 1,030,068,663.60 and 202,211,655.20 is: 303,213,106.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,948,832.80 : 1,030,068,663.60 = 202,211,655.20 : x
  2. Step 2: Convert to fraction form
    686,948,832.80/1,030,068,663.60 = 202,211,655.20/x
  3. Step 3: Cross multiply
    686,948,832.80x = 1,030,068,663.60 × 202,211,655.20
  4. Step 4: Simplify right side
    686,948,832.80x = 208,291,889,436,207,968
  5. Step 5: Solve for x
    x = 208,291,889,436,207,968/686,948,832.80
  6. Step 6: Final answer
    x = 303,213,106.26

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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.