Home / 1,248,815,307.78-1,872,496,880.37-472,520,838.78

Finding the Fourth Proportional to 1,248,815,307.78, 1,872,496,880.37 and 472,520,838.78

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Solution

The fourth proportional to 1,248,815,307.78, 1,872,496,880.37 and 472,520,838.78 is: 708,506,526.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,815,307.78 : 1,872,496,880.37 = 472,520,838.78 : x
  2. Step 2: Convert to fraction form
    1,248,815,307.78/1,872,496,880.37 = 472,520,838.78/x
  3. Step 3: Cross multiply
    1,248,815,307.78x = 1,872,496,880.37 × 472,520,838.78
  4. Step 4: Simplify right side
    1,248,815,307.78x = 884,793,796,525,365,632
  5. Step 5: Solve for x
    x = 884,793,796,525,365,632/1,248,815,307.78
  6. Step 6: Final answer
    x = 708,506,526.96

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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.