Home / 86,249,570.40-129,310,543.80-40,758,220.80

Finding the Fourth Proportional to 86,249,570.40, 129,310,543.80 and 40,758,220.80

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Solution

The fourth proportional to 86,249,570.40, 129,310,543.80 and 40,758,220.80 is: 61,107,176.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,249,570.40 : 129,310,543.80 = 40,758,220.80 : x
  2. Step 2: Convert to fraction form
    86,249,570.40/129,310,543.80 = 40,758,220.80/x
  3. Step 3: Cross multiply
    86,249,570.40x = 129,310,543.80 × 40,758,220.80
  4. Step 4: Simplify right side
    86,249,570.40x = 5,270,467,695,968,471
  5. Step 5: Solve for x
    x = 5,270,467,695,968,471/86,249,570.40
  6. Step 6: Final answer
    x = 61,107,176.20

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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.