Home / 1,864,798,639.40-2,798,205,728.70-829,819,260.20

Finding the Fourth Proportional to 1,864,798,639.40, 2,798,205,728.70 and 829,819,260.20

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Solution

The fourth proportional to 1,864,798,639.40, 2,798,205,728.70 and 829,819,260.20 is: 1,245,177,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864,798,639.40 : 2,798,205,728.70 = 829,819,260.20 : x
  2. Step 2: Convert to fraction form
    1,864,798,639.40/2,798,205,728.70 = 829,819,260.20/x
  3. Step 3: Cross multiply
    1,864,798,639.40x = 2,798,205,728.70 × 829,819,260.20
  4. Step 4: Simplify right side
    1,864,798,639.40x = 2,322,005,007,677,235,712
  5. Step 5: Solve for x
    x = 2,322,005,007,677,235,712/1,864,798,639.40
  6. Step 6: Final answer
    x = 1,245,177,339.05

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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.