Home / 890,395,220.40-1,335,592,830.60-660,812,708.40

Finding the Fourth Proportional to 890,395,220.40, 1,335,592,830.60 and 660,812,708.40

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Solution

The fourth proportional to 890,395,220.40, 1,335,592,830.60 and 660,812,708.40 is: 991,219,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,395,220.40 : 1,335,592,830.60 = 660,812,708.40 : x
  2. Step 2: Convert to fraction form
    890,395,220.40/1,335,592,830.60 = 660,812,708.40/x
  3. Step 3: Cross multiply
    890,395,220.40x = 1,335,592,830.60 × 660,812,708.40
  4. Step 4: Simplify right side
    890,395,220.40x = 882,576,715,708,408,320
  5. Step 5: Solve for x
    x = 882,576,715,708,408,320/890,395,220.40
  6. Step 6: Final answer
    x = 991,219,062.60

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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.