Home / 85,263,620.80-127,748,464.80-39,732,030.40

Finding the Fourth Proportional to 85,263,620.80, 127,748,464.80 and 39,732,030.40

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Solution

The fourth proportional to 85,263,620.80, 127,748,464.80 and 39,732,030.40 is: 59,529,560.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,263,620.80 : 127,748,464.80 = 39,732,030.40 : x
  2. Step 2: Convert to fraction form
    85,263,620.80/127,748,464.80 = 39,732,030.40/x
  3. Step 3: Cross multiply
    85,263,620.80x = 127,748,464.80 × 39,732,030.40
  4. Step 4: Simplify right side
    85,263,620.80x = 5,075,705,886,986,930
  5. Step 5: Solve for x
    x = 5,075,705,886,986,930/85,263,620.80
  6. Step 6: Final answer
    x = 59,529,560.67

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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.