Home / 612,811,960.81-845,941,448.27-411,985,307.29

Finding the Fourth Proportional to 612,811,960.81, 845,941,448.27 and 411,985,307.29

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Solution

The fourth proportional to 612,811,960.81, 845,941,448.27 and 411,985,307.29 is: 568,715,152.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,811,960.81 : 845,941,448.27 = 411,985,307.29 : x
  2. Step 2: Convert to fraction form
    612,811,960.81/845,941,448.27 = 411,985,307.29/x
  3. Step 3: Cross multiply
    612,811,960.81x = 845,941,448.27 × 411,985,307.29
  4. Step 4: Simplify right side
    612,811,960.81x = 348,515,447,514,863,616
  5. Step 5: Solve for x
    x = 348,515,447,514,863,616/612,811,960.81
  6. Step 6: Final answer
    x = 568,715,152.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.