Home / 688,897,326.65-1,033,343,040.74-190,906,418.96

Finding the Fourth Proportional to 688,897,326.65, 1,033,343,040.74 and 190,906,418.96

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Solution

The fourth proportional to 688,897,326.65, 1,033,343,040.74 and 190,906,418.96 is: 286,358,811.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,897,326.65 : 1,033,343,040.74 = 190,906,418.96 : x
  2. Step 2: Convert to fraction form
    688,897,326.65/1,033,343,040.74 = 190,906,418.96/x
  3. Step 3: Cross multiply
    688,897,326.65x = 1,033,343,040.74 × 190,906,418.96
  4. Step 4: Simplify right side
    688,897,326.65x = 197,271,819,465,388,064
  5. Step 5: Solve for x
    x = 197,271,819,465,388,064/688,897,326.65
  6. Step 6: Final answer
    x = 286,358,811.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.