Home / 522,038,899.12-781,355,090.68-383,827,860.40

Finding the Fourth Proportional to 522,038,899.12, 781,355,090.68 and 383,827,860.40

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Solution

The fourth proportional to 522,038,899.12, 781,355,090.68 and 383,827,860.40 is: 574,489,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,038,899.12 : 781,355,090.68 = 383,827,860.40 : x
  2. Step 2: Convert to fraction form
    522,038,899.12/781,355,090.68 = 383,827,860.40/x
  3. Step 3: Cross multiply
    522,038,899.12x = 781,355,090.68 × 383,827,860.40
  4. Step 4: Simplify right side
    522,038,899.12x = 299,905,852,668,352,320
  5. Step 5: Solve for x
    x = 299,905,852,668,352,320/522,038,899.12
  6. Step 6: Final answer
    x = 574,489,474.20

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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.