Home / 1,221,107,392.51-1,684,671,699.75-719,009,316.83

Finding the Fourth Proportional to 1,221,107,392.51, 1,684,671,699.75 and 719,009,316.83

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Solution

The fourth proportional to 1,221,107,392.51, 1,684,671,699.75 and 719,009,316.83 is: 991,964,060.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,107,392.51 : 1,684,671,699.75 = 719,009,316.83 : x
  2. Step 2: Convert to fraction form
    1,221,107,392.51/1,684,671,699.75 = 719,009,316.83/x
  3. Step 3: Cross multiply
    1,221,107,392.51x = 1,684,671,699.75 × 719,009,316.83
  4. Step 4: Simplify right side
    1,221,107,392.51x = 1,211,294,647,921,561,856
  5. Step 5: Solve for x
    x = 1,211,294,647,921,561,856/1,221,107,392.51
  6. Step 6: Final answer
    x = 991,964,060.94

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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.