Home / 656,128,940.80-984,193,411.20-383,359,302.40

Finding the Fourth Proportional to 656,128,940.80, 984,193,411.20 and 383,359,302.40

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Solution

The fourth proportional to 656,128,940.80, 984,193,411.20 and 383,359,302.40 is: 575,038,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,128,940.80 : 984,193,411.20 = 383,359,302.40 : x
  2. Step 2: Convert to fraction form
    656,128,940.80/984,193,411.20 = 383,359,302.40/x
  3. Step 3: Cross multiply
    656,128,940.80x = 984,193,411.20 × 383,359,302.40
  4. Step 4: Simplify right side
    656,128,940.80x = 377,299,699,544,308,352
  5. Step 5: Solve for x
    x = 377,299,699,544,308,352/656,128,940.80
  6. Step 6: Final answer
    x = 575,038,953.60

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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.