Home / 111,430,885.39-153,774,920.79-61,871,354.93

Finding the Fourth Proportional to 111,430,885.39, 153,774,920.79 and 61,871,354.93

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Solution

The fourth proportional to 111,430,885.39, 153,774,920.79 and 61,871,354.93 is: 85,382,635.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,430,885.39 : 153,774,920.79 = 61,871,354.93 : x
  2. Step 2: Convert to fraction form
    111,430,885.39/153,774,920.79 = 61,871,354.93/x
  3. Step 3: Cross multiply
    111,430,885.39x = 153,774,920.79 × 61,871,354.93
  4. Step 4: Simplify right side
    111,430,885.39x = 9,514,262,703,915,162
  5. Step 5: Solve for x
    x = 9,514,262,703,915,162/111,430,885.39
  6. Step 6: Final answer
    x = 85,382,635.80

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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.