Home / 86,938,167.30-130,295,276.55-66,642,807.30

Finding the Fourth Proportional to 86,938,167.30, 130,295,276.55 and 66,642,807.30

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Solution

The fourth proportional to 86,938,167.30, 130,295,276.55 and 66,642,807.30 is: 99,878,376.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938,167.30 : 130,295,276.55 = 66,642,807.30 : x
  2. Step 2: Convert to fraction form
    86,938,167.30/130,295,276.55 = 66,642,807.30/x
  3. Step 3: Cross multiply
    86,938,167.30x = 130,295,276.55 × 66,642,807.30
  4. Step 4: Simplify right side
    86,938,167.30x = 8,683,243,007,221,858
  5. Step 5: Solve for x
    x = 8,683,243,007,221,858/86,938,167.30
  6. Step 6: Final answer
    x = 99,878,376.52

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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.