Home / 658,090,700.80-987,136,051.20-335,604,428.80

Finding the Fourth Proportional to 658,090,700.80, 987,136,051.20 and 335,604,428.80

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Solution

The fourth proportional to 658,090,700.80, 987,136,051.20 and 335,604,428.80 is: 503,406,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,090,700.80 : 987,136,051.20 = 335,604,428.80 : x
  2. Step 2: Convert to fraction form
    658,090,700.80/987,136,051.20 = 335,604,428.80/x
  3. Step 3: Cross multiply
    658,090,700.80x = 987,136,051.20 × 335,604,428.80
  4. Step 4: Simplify right side
    658,090,700.80x = 331,287,230,610,863,552
  5. Step 5: Solve for x
    x = 331,287,230,610,863,552/658,090,700.80
  6. Step 6: Final answer
    x = 503,406,643.20

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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.