Home / 1,270,966,931.40-1,753,889,630.78-698,745,817.60

Finding the Fourth Proportional to 1,270,966,931.40, 1,753,889,630.78 and 698,745,817.60

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Solution

The fourth proportional to 1,270,966,931.40, 1,753,889,630.78 and 698,745,817.60 is: 964,244,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,966,931.40 : 1,753,889,630.78 = 698,745,817.60 : x
  2. Step 2: Convert to fraction form
    1,270,966,931.40/1,753,889,630.78 = 698,745,817.60/x
  3. Step 3: Cross multiply
    1,270,966,931.40x = 1,753,889,630.78 × 698,745,817.60
  4. Step 4: Simplify right side
    1,270,966,931.40x = 1,225,523,044,039,533,312
  5. Step 5: Solve for x
    x = 1,225,523,044,039,533,312/1,270,966,931.40
  6. Step 6: Final answer
    x = 964,244,634.35

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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.