Home / 66,580,065-99,870,097.50-18,711,009

Finding the Fourth Proportional to 66,580,065, 99,870,097.50 and 18,711,009

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Solution

The fourth proportional to 66,580,065, 99,870,097.50 and 18,711,009 is: 28,066,513.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,065 : 99,870,097.50 = 18,711,009 : x
  2. Step 2: Convert to fraction form
    66,580,065/99,870,097.50 = 18,711,009/x
  3. Step 3: Cross multiply
    66,580,065x = 99,870,097.50 × 18,711,009
  4. Step 4: Simplify right side
    66,580,065x = 1,868,670,293,153,377.50
  5. Step 5: Solve for x
    x = 1,868,670,293,153,377.50/66,580,065
  6. Step 6: Final answer
    x = 28,066,513.50

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1.5x scale

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.