Home / 66,430,215.60-99,645,323.40-42,276,222.15

Finding the Fourth Proportional to 66,430,215.60, 99,645,323.40 and 42,276,222.15

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Solution

The fourth proportional to 66,430,215.60, 99,645,323.40 and 42,276,222.15 is: 63,414,333.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,215.60 : 99,645,323.40 = 42,276,222.15 : x
  2. Step 2: Convert to fraction form
    66,430,215.60/99,645,323.40 = 42,276,222.15/x
  3. Step 3: Cross multiply
    66,430,215.60x = 99,645,323.40 × 42,276,222.15
  4. Step 4: Simplify right side
    66,430,215.60x = 4,212,627,828,266,993.50
  5. Step 5: Solve for x
    x = 4,212,627,828,266,993.50/66,430,215.60
  6. Step 6: Final answer
    x = 63,414,333.23

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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.