Home / 1,358,421,834.53-1,874,628,479.98-771,743,163.17

Finding the Fourth Proportional to 1,358,421,834.53, 1,874,628,479.98 and 771,743,163.17

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Solution

The fourth proportional to 1,358,421,834.53, 1,874,628,479.98 and 771,743,163.17 is: 1,065,009,171.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,421,834.53 : 1,874,628,479.98 = 771,743,163.17 : x
  2. Step 2: Convert to fraction form
    1,358,421,834.53/1,874,628,479.98 = 771,743,163.17/x
  3. Step 3: Cross multiply
    1,358,421,834.53x = 1,874,628,479.98 × 771,743,163.17
  4. Step 4: Simplify right side
    1,358,421,834.53x = 1,446,731,712,913,946,880
  5. Step 5: Solve for x
    x = 1,446,731,712,913,946,880/1,358,421,834.53
  6. Step 6: Final answer
    x = 1,065,009,171.77

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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.