Home / 1,358,421,842.54-1,874,628,491.04-771,743,171.18

Finding the Fourth Proportional to 1,358,421,842.54, 1,874,628,491.04 and 771,743,171.18

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Solution

The fourth proportional to 1,358,421,842.54, 1,874,628,491.04 and 771,743,171.18 is: 1,065,009,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,421,842.54 : 1,874,628,491.04 = 771,743,171.18 : x
  2. Step 2: Convert to fraction form
    1,358,421,842.54/1,874,628,491.04 = 771,743,171.18/x
  3. Step 3: Cross multiply
    1,358,421,842.54x = 1,874,628,491.04 × 771,743,171.18
  4. Step 4: Simplify right side
    1,358,421,842.54x = 1,446,731,736,459,587,584
  5. Step 5: Solve for x
    x = 1,446,731,736,459,587,584/1,358,421,842.54
  6. Step 6: Final answer
    x = 1,065,009,182.83

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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.