Home / 66,036,020.40-99,054,030.60-43,077,769.20

Finding the Fourth Proportional to 66,036,020.40, 99,054,030.60 and 43,077,769.20

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Solution

The fourth proportional to 66,036,020.40, 99,054,030.60 and 43,077,769.20 is: 64,616,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,036,020.40 : 99,054,030.60 = 43,077,769.20 : x
  2. Step 2: Convert to fraction form
    66,036,020.40/99,054,030.60 = 43,077,769.20/x
  3. Step 3: Cross multiply
    66,036,020.40x = 99,054,030.60 × 43,077,769.20
  4. Step 4: Simplify right side
    66,036,020.40x = 4,267,026,668,516,537.50
  5. Step 5: Solve for x
    x = 4,267,026,668,516,537.50/66,036,020.40
  6. Step 6: Final answer
    x = 64,616,653.80

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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.