Home / 66,688,774.07-100,019,164.30-18,808,520.63

Finding the Fourth Proportional to 66,688,774.07, 100,019,164.30 and 18,808,520.63

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Solution

The fourth proportional to 66,688,774.07, 100,019,164.30 and 18,808,520.63 is: 28,208,833.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,688,774.07 : 100,019,164.30 = 18,808,520.63 : x
  2. Step 2: Convert to fraction form
    66,688,774.07/100,019,164.30 = 18,808,520.63/x
  3. Step 3: Cross multiply
    66,688,774.07x = 100,019,164.30 × 18,808,520.63
  4. Step 4: Simplify right side
    66,688,774.07x = 1,881,212,514,584,792.25
  5. Step 5: Solve for x
    x = 1,881,212,514,584,792.25/66,688,774.07
  6. Step 6: Final answer
    x = 28,208,833.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.