Home / 1,310,795,774.31-1,808,924,834.19-716,118,775.77

Finding the Fourth Proportional to 1,310,795,774.31, 1,808,924,834.19 and 716,118,775.77

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Solution

The fourth proportional to 1,310,795,774.31, 1,808,924,834.19 and 716,118,775.77 is: 988,258,478.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,795,774.31 : 1,808,924,834.19 = 716,118,775.77 : x
  2. Step 2: Convert to fraction form
    1,310,795,774.31/1,808,924,834.19 = 716,118,775.77/x
  3. Step 3: Cross multiply
    1,310,795,774.31x = 1,808,924,834.19 × 716,118,775.77
  4. Step 4: Simplify right side
    1,310,795,774.31x = 1,295,405,037,720,092,928
  5. Step 5: Solve for x
    x = 1,295,405,037,720,092,928/1,310,795,774.31
  6. Step 6: Final answer
    x = 988,258,478.63

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Double scale
Find fourth proportional to 1,310,795,775.31, 1,808,924,835.57 and 716,118,776.77
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1.5x scale

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.