Home / 138,973,326,347.30-191,772,665,331.67-77,993,916,457.53

Finding the Fourth Proportional to 138,973,326,347.30, 191,772,665,331.67 and 77,993,916,457.53

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Solution

The fourth proportional to 138,973,326,347.30, 191,772,665,331.67 and 77,993,916,457.53 is: 107,625,697,907.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,973,326,347.30 : 191,772,665,331.67 = 77,993,916,457.53 : x
  2. Step 2: Convert to fraction form
    138,973,326,347.30/191,772,665,331.67 = 77,993,916,457.53/x
  3. Step 3: Cross multiply
    138,973,326,347.30x = 191,772,665,331.67 × 77,993,916,457.53
  4. Step 4: Simplify right side
    138,973,326,347.30x = 14,957,101,238,715,171,209,216
  5. Step 5: Solve for x
    x = 14,957,101,238,715,171,209,216/138,973,326,347.30
  6. Step 6: Final answer
    x = 107,625,697,907.93

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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.