Home / 138,973,326,347.65-191,772,665,332.16-77,993,916,457.88

Finding the Fourth Proportional to 138,973,326,347.65, 191,772,665,332.16 and 77,993,916,457.88

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Solution

The fourth proportional to 138,973,326,347.65, 191,772,665,332.16 and 77,993,916,457.88 is: 107,625,697,908.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,973,326,347.65 : 191,772,665,332.16 = 77,993,916,457.88 : x
  2. Step 2: Convert to fraction form
    138,973,326,347.65/191,772,665,332.16 = 77,993,916,457.88/x
  3. Step 3: Cross multiply
    138,973,326,347.65x = 191,772,665,332.16 × 77,993,916,457.88
  4. Step 4: Simplify right side
    138,973,326,347.65x = 14,957,101,238,821,467,455,488
  5. Step 5: Solve for x
    x = 14,957,101,238,821,467,455,488/138,973,326,347.65
  6. Step 6: Final answer
    x = 107,625,697,908.43

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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.