Home / 1,128,171,308.43-1,556,925,030.03-626,380,116.87

Finding the Fourth Proportional to 1,128,171,308.43, 1,556,925,030.03 and 626,380,116.87

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Solution

The fourth proportional to 1,128,171,308.43, 1,556,925,030.03 and 626,380,116.87 is: 864,431,558.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,171,308.43 : 1,556,925,030.03 = 626,380,116.87 : x
  2. Step 2: Convert to fraction form
    1,128,171,308.43/1,556,925,030.03 = 626,380,116.87/x
  3. Step 3: Cross multiply
    1,128,171,308.43x = 1,556,925,030.03 × 626,380,116.87
  4. Step 4: Simplify right side
    1,128,171,308.43x = 975,226,882,268,019,712
  5. Step 5: Solve for x
    x = 975,226,882,268,019,712/1,128,171,308.43
  6. Step 6: Final answer
    x = 864,431,558.38

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Double scale
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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.