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Finding the Fourth Proportional to 977,771,215.90, 1,466,656,823.85 and 870,632,710.30

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Solution

The fourth proportional to 977,771,215.90, 1,466,656,823.85 and 870,632,710.30 is: 1,305,949,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,771,215.90 : 1,466,656,823.85 = 870,632,710.30 : x
  2. Step 2: Convert to fraction form
    977,771,215.90/1,466,656,823.85 = 870,632,710.30/x
  3. Step 3: Cross multiply
    977,771,215.90x = 1,466,656,823.85 × 870,632,710.30
  4. Step 4: Simplify right side
    977,771,215.90x = 1,276,919,405,628,515,072
  5. Step 5: Solve for x
    x = 1,276,919,405,628,515,072/977,771,215.90
  6. Step 6: Final answer
    x = 1,305,949,065.45

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1.5x scale

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.