Home / 359,616,643.92-495,997,510.01-309,465,392.36

Finding the Fourth Proportional to 359,616,643.92, 495,997,510.01 and 309,465,392.36

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Solution

The fourth proportional to 359,616,643.92, 495,997,510.01 and 309,465,392.36 is: 426,826,918.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,616,643.92 : 495,997,510.01 = 309,465,392.36 : x
  2. Step 2: Convert to fraction form
    359,616,643.92/495,997,510.01 = 309,465,392.36/x
  3. Step 3: Cross multiply
    359,616,643.92x = 495,997,510.01 × 309,465,392.36
  4. Step 4: Simplify right side
    359,616,643.92x = 153,494,064,044,827,680
  5. Step 5: Solve for x
    x = 153,494,064,044,827,680/359,616,643.92
  6. Step 6: Final answer
    x = 426,826,918.72

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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.