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Finding the Fourth Proportional to 66,903,246.40, 100,354,869.60 and 64,352,329.60

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Solution

The fourth proportional to 66,903,246.40, 100,354,869.60 and 64,352,329.60 is: 96,528,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,903,246.40 : 100,354,869.60 = 64,352,329.60 : x
  2. Step 2: Convert to fraction form
    66,903,246.40/100,354,869.60 = 64,352,329.60/x
  3. Step 3: Cross multiply
    66,903,246.40x = 100,354,869.60 × 64,352,329.60
  4. Step 4: Simplify right side
    66,903,246.40x = 6,458,069,645,464,220
  5. Step 5: Solve for x
    x = 6,458,069,645,464,220/66,903,246.40
  6. Step 6: Final answer
    x = 96,528,494.40

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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.