Home / 656,421,207.20-984,683,948.88-219,724,196.48

Finding the Fourth Proportional to 656,421,207.20, 984,683,948.88 and 219,724,196.48

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Solution

The fourth proportional to 656,421,207.20, 984,683,948.88 and 219,724,196.48 is: 329,603,746.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,421,207.20 : 984,683,948.88 = 219,724,196.48 : x
  2. Step 2: Convert to fraction form
    656,421,207.20/984,683,948.88 = 219,724,196.48/x
  3. Step 3: Cross multiply
    656,421,207.20x = 984,683,948.88 × 219,724,196.48
  4. Step 4: Simplify right side
    656,421,207.20x = 216,358,889,454,411,392
  5. Step 5: Solve for x
    x = 216,358,889,454,411,392/656,421,207.20
  6. Step 6: Final answer
    x = 329,603,746.93

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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.