Home / 66,580,071-99,870,106.50-18,711,015

Finding the Fourth Proportional to 66,580,071, 99,870,106.50 and 18,711,015

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Solution

The fourth proportional to 66,580,071, 99,870,106.50 and 18,711,015 is: 28,066,522.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,071 : 99,870,106.50 = 18,711,015 : x
  2. Step 2: Convert to fraction form
    66,580,071/99,870,106.50 = 18,711,015/x
  3. Step 3: Cross multiply
    66,580,071x = 99,870,106.50 × 18,711,015
  4. Step 4: Simplify right side
    66,580,071x = 1,868,671,060,773,097.50
  5. Step 5: Solve for x
    x = 1,868,671,060,773,097.50/66,580,071
  6. Step 6: Final answer
    x = 28,066,522.50

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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.