Home / 522,038,898.12-781,355,089.18-383,827,859.40

Finding the Fourth Proportional to 522,038,898.12, 781,355,089.18 and 383,827,859.40

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Solution

The fourth proportional to 522,038,898.12, 781,355,089.18 and 383,827,859.40 is: 574,489,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,038,898.12 : 781,355,089.18 = 383,827,859.40 : x
  2. Step 2: Convert to fraction form
    522,038,898.12/781,355,089.18 = 383,827,859.40/x
  3. Step 3: Cross multiply
    522,038,898.12x = 781,355,089.18 × 383,827,859.40
  4. Step 4: Simplify right side
    522,038,898.12x = 299,905,851,311,255,488
  5. Step 5: Solve for x
    x = 299,905,851,311,255,488/522,038,898.12
  6. Step 6: Final answer
    x = 574,489,472.70

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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.