Home / 1,407,002,772.96-1,941,656,674.32-780,464,714.40

Finding the Fourth Proportional to 1,407,002,772.96, 1,941,656,674.32 and 780,464,714.40

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Solution

The fourth proportional to 1,407,002,772.96, 1,941,656,674.32 and 780,464,714.40 is: 1,077,037,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,002,772.96 : 1,941,656,674.32 = 780,464,714.40 : x
  2. Step 2: Convert to fraction form
    1,407,002,772.96/1,941,656,674.32 = 780,464,714.40/x
  3. Step 3: Cross multiply
    1,407,002,772.96x = 1,941,656,674.32 × 780,464,714.40
  4. Step 4: Simplify right side
    1,407,002,772.96x = 1,515,394,521,786,012,416
  5. Step 5: Solve for x
    x = 1,515,394,521,786,012,416/1,407,002,772.96
  6. Step 6: Final answer
    x = 1,077,037,338.45

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Double scale
Find fourth proportional to 1,407,002,773.96, 1,941,656,675.70 and 780,464,715.40
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.