Home / 86,938,404.30-130,295,632.05-66,643,044.30

Finding the Fourth Proportional to 86,938,404.30, 130,295,632.05 and 66,643,044.30

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Solution

The fourth proportional to 86,938,404.30, 130,295,632.05 and 66,643,044.30 is: 99,878,731.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938,404.30 : 130,295,632.05 = 66,643,044.30 : x
  2. Step 2: Convert to fraction form
    86,938,404.30/130,295,632.05 = 66,643,044.30/x
  3. Step 3: Cross multiply
    86,938,404.30x = 130,295,632.05 × 66,643,044.30
  4. Step 4: Simplify right side
    86,938,404.30x = 8,683,297,578,804,649
  5. Step 5: Solve for x
    x = 8,683,297,578,804,649/86,938,404.30
  6. Step 6: Final answer
    x = 99,878,731.94

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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.