Home / 827,879,973.89-1,242,681,289.31-609,776,587.49

Finding the Fourth Proportional to 827,879,973.89, 1,242,681,289.31 and 609,776,587.49

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Solution

The fourth proportional to 827,879,973.89, 1,242,681,289.31 and 609,776,587.49 is: 915,299,294.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,879,973.89 : 1,242,681,289.31 = 609,776,587.49 : x
  2. Step 2: Convert to fraction form
    827,879,973.89/1,242,681,289.31 = 609,776,587.49/x
  3. Step 3: Cross multiply
    827,879,973.89x = 1,242,681,289.31 × 609,776,587.49
  4. Step 4: Simplify right side
    827,879,973.89x = 757,757,955,928,436,224
  5. Step 5: Solve for x
    x = 757,757,955,928,436,224/827,879,973.89
  6. Step 6: Final answer
    x = 915,299,294.38

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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.