Home / 513,039,602.52-707,975,683.98-278,085,218.40

Finding the Fourth Proportional to 513,039,602.52, 707,975,683.98 and 278,085,218.40

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Solution

The fourth proportional to 513,039,602.52, 707,975,683.98 and 278,085,218.40 is: 383,747,320.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,602.52 : 707,975,683.98 = 278,085,218.40 : x
  2. Step 2: Convert to fraction form
    513,039,602.52/707,975,683.98 = 278,085,218.40/x
  3. Step 3: Cross multiply
    513,039,602.52x = 707,975,683.98 × 278,085,218.40
  4. Step 4: Simplify right side
    513,039,602.52x = 196,877,572,701,467,680
  5. Step 5: Solve for x
    x = 196,877,572,701,467,680/513,039,602.52
  6. Step 6: Final answer
    x = 383,747,320.35

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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.