Home / 406,074,758,428.80-609,112,137,643.20-217,788,400,774.80

Finding the Fourth Proportional to 406,074,758,428.80, 609,112,137,643.20 and 217,788,400,774.80

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Solution

The fourth proportional to 406,074,758,428.80, 609,112,137,643.20 and 217,788,400,774.80 is: 326,682,601,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,074,758,428.80 : 609,112,137,643.20 = 217,788,400,774.80 : x
  2. Step 2: Convert to fraction form
    406,074,758,428.80/609,112,137,643.20 = 217,788,400,774.80/x
  3. Step 3: Cross multiply
    406,074,758,428.80x = 609,112,137,643.20 × 217,788,400,774.80
  4. Step 4: Simplify right side
    406,074,758,428.80x = 132,657,558,349,832,370,782,208
  5. Step 5: Solve for x
    x = 132,657,558,349,832,370,782,208/406,074,758,428.80
  6. Step 6: Final answer
    x = 326,682,601,162.20

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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.