Home / 1,042,939,261.55-1,564,409,454.10-387,805,161.71

Finding the Fourth Proportional to 1,042,939,261.55, 1,564,409,454.10 and 387,805,161.71

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Solution

The fourth proportional to 1,042,939,261.55, 1,564,409,454.10 and 387,805,161.71 is: 581,707,951.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,939,261.55 : 1,564,409,454.10 = 387,805,161.71 : x
  2. Step 2: Convert to fraction form
    1,042,939,261.55/1,564,409,454.10 = 387,805,161.71/x
  3. Step 3: Cross multiply
    1,042,939,261.55x = 1,564,409,454.10 × 387,805,161.71
  4. Step 4: Simplify right side
    1,042,939,261.55x = 606,686,061,330,844,800
  5. Step 5: Solve for x
    x = 606,686,061,330,844,800/1,042,939,261.55
  6. Step 6: Final answer
    x = 581,707,951.46

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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.