Home / 862,230,748.80-1,293,346,123.20-248,834,985.60

Finding the Fourth Proportional to 862,230,748.80, 1,293,346,123.20 and 248,834,985.60

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Solution

The fourth proportional to 862,230,748.80, 1,293,346,123.20 and 248,834,985.60 is: 373,252,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,230,748.80 : 1,293,346,123.20 = 248,834,985.60 : x
  2. Step 2: Convert to fraction form
    862,230,748.80/1,293,346,123.20 = 248,834,985.60/x
  3. Step 3: Cross multiply
    862,230,748.80x = 1,293,346,123.20 × 248,834,985.60
  4. Step 4: Simplify right side
    862,230,748.80x = 321,829,763,942,287,808
  5. Step 5: Solve for x
    x = 321,829,763,942,287,808/862,230,748.80
  6. Step 6: Final answer
    x = 373,252,478.40

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Double scale
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Similar ratio
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1.5x scale

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.