Home / 1,173,670,540.62-1,619,701,795.08-645,024,920.28

Finding the Fourth Proportional to 1,173,670,540.62, 1,619,701,795.08 and 645,024,920.28

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Solution

The fourth proportional to 1,173,670,540.62, 1,619,701,795.08 and 645,024,920.28 is: 890,154,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,670,540.62 : 1,619,701,795.08 = 645,024,920.28 : x
  2. Step 2: Convert to fraction form
    1,173,670,540.62/1,619,701,795.08 = 645,024,920.28/x
  3. Step 3: Cross multiply
    1,173,670,540.62x = 1,619,701,795.08 × 645,024,920.28
  4. Step 4: Simplify right side
    1,173,670,540.62x = 1,044,748,021,248,849,792
  5. Step 5: Solve for x
    x = 1,044,748,021,248,849,792/1,173,670,540.62
  6. Step 6: Final answer
    x = 890,154,421.61

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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.