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Finding the Fourth Proportional to 386,294,681.80, 579,442,022.70 and 295,595,417.80

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Solution

The fourth proportional to 386,294,681.80, 579,442,022.70 and 295,595,417.80 is: 443,393,126.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,294,681.80 : 579,442,022.70 = 295,595,417.80 : x
  2. Step 2: Convert to fraction form
    386,294,681.80/579,442,022.70 = 295,595,417.80/x
  3. Step 3: Cross multiply
    386,294,681.80x = 579,442,022.70 × 295,595,417.80
  4. Step 4: Simplify right side
    386,294,681.80x = 171,280,406,790,883,616
  5. Step 5: Solve for x
    x = 171,280,406,790,883,616/386,294,681.80
  6. Step 6: Final answer
    x = 443,393,126.70

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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.