Home / 661,972,068.65-913,521,411.43-383,675,017.38

Finding the Fourth Proportional to 661,972,068.65, 913,521,411.43 and 383,675,017.38

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Solution

The fourth proportional to 661,972,068.65, 913,521,411.43 and 383,675,017.38 is: 529,471,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,972,068.65 : 913,521,411.43 = 383,675,017.38 : x
  2. Step 2: Convert to fraction form
    661,972,068.65/913,521,411.43 = 383,675,017.38/x
  3. Step 3: Cross multiply
    661,972,068.65x = 913,521,411.43 × 383,675,017.38
  4. Step 4: Simplify right side
    661,972,068.65x = 350,495,343,406,448,192
  5. Step 5: Solve for x
    x = 350,495,343,406,448,192/661,972,068.65
  6. Step 6: Final answer
    x = 529,471,498.89

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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.