Home / 1,370,248,871.62-1,890,944,842.30-743,717,428.74

Finding the Fourth Proportional to 1,370,248,871.62, 1,890,944,842.30 and 743,717,428.74

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Solution

The fourth proportional to 1,370,248,871.62, 1,890,944,842.30 and 743,717,428.74 is: 1,026,330,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,248,871.62 : 1,890,944,842.30 = 743,717,428.74 : x
  2. Step 2: Convert to fraction form
    1,370,248,871.62/1,890,944,842.30 = 743,717,428.74/x
  3. Step 3: Cross multiply
    1,370,248,871.62x = 1,890,944,842.30 × 743,717,428.74
  4. Step 4: Simplify right side
    1,370,248,871.62x = 1,406,328,636,004,520,704
  5. Step 5: Solve for x
    x = 1,406,328,636,004,520,704/1,370,248,871.62
  6. Step 6: Final answer
    x = 1,026,330,811.24

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Double scale
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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.