Home / 1,247,511,437.60-1,869,251,617.20-786,624,807.20

Finding the Fourth Proportional to 1,247,511,437.60, 1,869,251,617.20 and 786,624,807.20

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Solution

The fourth proportional to 1,247,511,437.60, 1,869,251,617.20 and 786,624,807.20 is: 1,178,666,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,511,437.60 : 1,869,251,617.20 = 786,624,807.20 : x
  2. Step 2: Convert to fraction form
    1,247,511,437.60/1,869,251,617.20 = 786,624,807.20/x
  3. Step 3: Cross multiply
    1,247,511,437.60x = 1,869,251,617.20 × 786,624,807.20
  4. Step 4: Simplify right side
    1,247,511,437.60x = 1,470,399,692,988,238,336
  5. Step 5: Solve for x
    x = 1,470,399,692,988,238,336/1,247,511,437.60
  6. Step 6: Final answer
    x = 1,178,666,302.10

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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.