Home / 406,167,130.40-609,250,695.60-388,475,175.20

Finding the Fourth Proportional to 406,167,130.40, 609,250,695.60 and 388,475,175.20

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Solution

The fourth proportional to 406,167,130.40, 609,250,695.60 and 388,475,175.20 is: 582,712,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,167,130.40 : 609,250,695.60 = 388,475,175.20 : x
  2. Step 2: Convert to fraction form
    406,167,130.40/609,250,695.60 = 388,475,175.20/x
  3. Step 3: Cross multiply
    406,167,130.40x = 609,250,695.60 × 388,475,175.20
  4. Step 4: Simplify right side
    406,167,130.40x = 236,678,770,713,931,872
  5. Step 5: Solve for x
    x = 236,678,770,713,931,872/406,167,130.40
  6. Step 6: Final answer
    x = 582,712,762.80

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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.