Home / 672,211,537.60-1,008,317,306.40-611,946,128.20

Finding the Fourth Proportional to 672,211,537.60, 1,008,317,306.40 and 611,946,128.20

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Solution

The fourth proportional to 672,211,537.60, 1,008,317,306.40 and 611,946,128.20 is: 917,919,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,211,537.60 : 1,008,317,306.40 = 611,946,128.20 : x
  2. Step 2: Convert to fraction form
    672,211,537.60/1,008,317,306.40 = 611,946,128.20/x
  3. Step 3: Cross multiply
    672,211,537.60x = 1,008,317,306.40 × 611,946,128.20
  4. Step 4: Simplify right side
    672,211,537.60x = 617,035,871,648,533,120
  5. Step 5: Solve for x
    x = 617,035,871,648,533,120/672,211,537.60
  6. Step 6: Final answer
    x = 917,919,192.30

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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.