Home / 1,225,065,821,391.40-1,690,739,079,440.20-697,243,551,624.60

Finding the Fourth Proportional to 1,225,065,821,391.40, 1,690,739,079,440.20 and 697,243,551,624.60

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Solution

The fourth proportional to 1,225,065,821,391.40, 1,690,739,079,440.20 and 697,243,551,624.60 is: 962,280,475,085.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,065,821,391.40 : 1,690,739,079,440.20 = 697,243,551,624.60 : x
  2. Step 2: Convert to fraction form
    1,225,065,821,391.40/1,690,739,079,440.20 = 697,243,551,624.60/x
  3. Step 3: Cross multiply
    1,225,065,821,391.40x = 1,690,739,079,440.20 × 697,243,551,624.60
  4. Step 4: Simplify right side
    1,225,065,821,391.40x = 1,178,856,920,619,391,662,424,064
  5. Step 5: Solve for x
    x = 1,178,856,920,619,391,662,424,064/1,225,065,821,391.40
  6. Step 6: Final answer
    x = 962,280,475,085.39

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Double scale
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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.