Home / 630,996,606.72-870,626,021.76-366,521,472

Finding the Fourth Proportional to 630,996,606.72, 870,626,021.76 and 366,521,472

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Solution

The fourth proportional to 630,996,606.72, 870,626,021.76 and 366,521,472 is: 505,712,911.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,996,606.72 : 870,626,021.76 = 366,521,472 : x
  2. Step 2: Convert to fraction form
    630,996,606.72/870,626,021.76 = 366,521,472/x
  3. Step 3: Cross multiply
    630,996,606.72x = 870,626,021.76 × 366,521,472
  4. Step 4: Simplify right side
    630,996,606.72x = 319,103,131,056,979,200
  5. Step 5: Solve for x
    x = 319,103,131,056,979,200/630,996,606.72
  6. Step 6: Final answer
    x = 505,712,911.38

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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.