Home / 907,645,853.70-1,361,468,780.55-778,505,690.70

Finding the Fourth Proportional to 907,645,853.70, 1,361,468,780.55 and 778,505,690.70

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Solution

The fourth proportional to 907,645,853.70, 1,361,468,780.55 and 778,505,690.70 is: 1,167,758,536.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,645,853.70 : 1,361,468,780.55 = 778,505,690.70 : x
  2. Step 2: Convert to fraction form
    907,645,853.70/1,361,468,780.55 = 778,505,690.70/x
  3. Step 3: Cross multiply
    907,645,853.70x = 1,361,468,780.55 × 778,505,690.70
  4. Step 4: Simplify right side
    907,645,853.70x = 1,059,911,193,368,564,480
  5. Step 5: Solve for x
    x = 1,059,911,193,368,564,480/907,645,853.70
  6. Step 6: Final answer
    x = 1,167,758,536.05

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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.