Home / 987,898,291.56-1,481,983,705.14-573,570,239.40

Finding the Fourth Proportional to 987,898,291.56, 1,481,983,705.14 and 573,570,239.40

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Solution

The fourth proportional to 987,898,291.56, 1,481,983,705.14 and 573,570,239.40 is: 860,434,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,898,291.56 : 1,481,983,705.14 = 573,570,239.40 : x
  2. Step 2: Convert to fraction form
    987,898,291.56/1,481,983,705.14 = 573,570,239.40/x
  3. Step 3: Cross multiply
    987,898,291.56x = 1,481,983,705.14 × 573,570,239.40
  4. Step 4: Simplify right side
    987,898,291.56x = 850,021,748,544,048,896
  5. Step 5: Solve for x
    x = 850,021,748,544,048,896/987,898,291.56
  6. Step 6: Final answer
    x = 860,434,475.70

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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.