Home / 140,625,477.20-210,938,215.80-86,205,918.80

Finding the Fourth Proportional to 140,625,477.20, 210,938,215.80 and 86,205,918.80

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Solution

The fourth proportional to 140,625,477.20, 210,938,215.80 and 86,205,918.80 is: 129,308,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,625,477.20 : 210,938,215.80 = 86,205,918.80 : x
  2. Step 2: Convert to fraction form
    140,625,477.20/210,938,215.80 = 86,205,918.80/x
  3. Step 3: Cross multiply
    140,625,477.20x = 210,938,215.80 × 86,205,918.80
  4. Step 4: Simplify right side
    140,625,477.20x = 18,184,122,703,071,676
  5. Step 5: Solve for x
    x = 18,184,122,703,071,676/140,625,477.20
  6. Step 6: Final answer
    x = 129,308,878.20

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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.