Home / 399,402,415.90-599,103,623.85-384,096,915.10

Finding the Fourth Proportional to 399,402,415.90, 599,103,623.85 and 384,096,915.10

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Solution

The fourth proportional to 399,402,415.90, 599,103,623.85 and 384,096,915.10 is: 576,145,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,402,415.90 : 599,103,623.85 = 384,096,915.10 : x
  2. Step 2: Convert to fraction form
    399,402,415.90/599,103,623.85 = 384,096,915.10/x
  3. Step 3: Cross multiply
    399,402,415.90x = 599,103,623.85 × 384,096,915.10
  4. Step 4: Simplify right side
    399,402,415.90x = 230,113,853,746,015,808
  5. Step 5: Solve for x
    x = 230,113,853,746,015,808/399,402,415.90
  6. Step 6: Final answer
    x = 576,145,372.65

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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.