Home / 1,289,670,087.80-1,779,745,199.82-732,753,866.36

Finding the Fourth Proportional to 1,289,670,087.80, 1,779,745,199.82 and 732,753,866.36

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Solution

The fourth proportional to 1,289,670,087.80, 1,779,745,199.82 and 732,753,866.36 is: 1,011,200,607.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,670,087.80 : 1,779,745,199.82 = 732,753,866.36 : x
  2. Step 2: Convert to fraction form
    1,289,670,087.80/1,779,745,199.82 = 732,753,866.36/x
  3. Step 3: Cross multiply
    1,289,670,087.80x = 1,779,745,199.82 × 732,753,866.36
  4. Step 4: Simplify right side
    1,289,670,087.80x = 1,304,115,176,303,755,776
  5. Step 5: Solve for x
    x = 1,304,115,176,303,755,776/1,289,670,087.80
  6. Step 6: Final answer
    x = 1,011,200,607.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.