Home / 1,870,160,983.40-2,805,241,475.10-780,426,122.60

Finding the Fourth Proportional to 1,870,160,983.40, 2,805,241,475.10 and 780,426,122.60

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Solution

The fourth proportional to 1,870,160,983.40, 2,805,241,475.10 and 780,426,122.60 is: 1,170,639,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870,160,983.40 : 2,805,241,475.10 = 780,426,122.60 : x
  2. Step 2: Convert to fraction form
    1,870,160,983.40/2,805,241,475.10 = 780,426,122.60/x
  3. Step 3: Cross multiply
    1,870,160,983.40x = 2,805,241,475.10 × 780,426,122.60
  4. Step 4: Simplify right side
    1,870,160,983.40x = 2,189,283,727,368,997,376
  5. Step 5: Solve for x
    x = 2,189,283,727,368,997,376/1,870,160,983.40
  6. Step 6: Final answer
    x = 1,170,639,183.90

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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.