Home / 119,623,971.53-165,111,795.63-77,911,979.37

Finding the Fourth Proportional to 119,623,971.53, 165,111,795.63 and 77,911,979.37

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Solution

The fourth proportional to 119,623,971.53, 165,111,795.63 and 77,911,979.37 is: 107,538,536.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,623,971.53 : 165,111,795.63 = 77,911,979.37 : x
  2. Step 2: Convert to fraction form
    119,623,971.53/165,111,795.63 = 77,911,979.37/x
  3. Step 3: Cross multiply
    119,623,971.53x = 165,111,795.63 × 77,911,979.37
  4. Step 4: Simplify right side
    119,623,971.53x = 12,864,186,814,868,216
  5. Step 5: Solve for x
    x = 12,864,186,814,868,216/119,623,971.53
  6. Step 6: Final answer
    x = 107,538,536.39

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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.