Home / 85,262,962.80-127,747,477.80-39,731,372.40

Finding the Fourth Proportional to 85,262,962.80, 127,747,477.80 and 39,731,372.40

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Solution

The fourth proportional to 85,262,962.80, 127,747,477.80 and 39,731,372.40 is: 59,528,574.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,262,962.80 : 127,747,477.80 = 39,731,372.40 : x
  2. Step 2: Convert to fraction form
    85,262,962.80/127,747,477.80 = 39,731,372.40/x
  3. Step 3: Cross multiply
    85,262,962.80x = 127,747,477.80 × 39,731,372.40
  4. Step 4: Simplify right side
    85,262,962.80x = 5,075,582,613,632,532
  5. Step 5: Solve for x
    x = 5,075,582,613,632,532/85,262,962.80
  6. Step 6: Final answer
    x = 59,528,574.27

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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.