Home / 1,438,736,926.86-1,985,505,102.81-881,712,400.86

Finding the Fourth Proportional to 1,438,736,926.86, 1,985,505,102.81 and 881,712,400.86

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Solution

The fourth proportional to 1,438,736,926.86, 1,985,505,102.81 and 881,712,400.86 is: 1,216,792,617.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,736,926.86 : 1,985,505,102.81 = 881,712,400.86 : x
  2. Step 2: Convert to fraction form
    1,438,736,926.86/1,985,505,102.81 = 881,712,400.86/x
  3. Step 3: Cross multiply
    1,438,736,926.86x = 1,985,505,102.81 × 881,712,400.86
  4. Step 4: Simplify right side
    1,438,736,926.86x = 1,750,644,471,118,386,176
  5. Step 5: Solve for x
    x = 1,750,644,471,118,386,176/1,438,736,926.86
  6. Step 6: Final answer
    x = 1,216,792,617.49

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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.