Home / 1,258,983,018.40-1,888,474,527.60-714,787,434.40

Finding the Fourth Proportional to 1,258,983,018.40, 1,888,474,527.60 and 714,787,434.40

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Solution

The fourth proportional to 1,258,983,018.40, 1,888,474,527.60 and 714,787,434.40 is: 1,072,181,151.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,983,018.40 : 1,888,474,527.60 = 714,787,434.40 : x
  2. Step 2: Convert to fraction form
    1,258,983,018.40/1,888,474,527.60 = 714,787,434.40/x
  3. Step 3: Cross multiply
    1,258,983,018.40x = 1,888,474,527.60 × 714,787,434.40
  4. Step 4: Simplify right side
    1,258,983,018.40x = 1,349,857,862,512,955,904
  5. Step 5: Solve for x
    x = 1,349,857,862,512,955,904/1,258,983,018.40
  6. Step 6: Final answer
    x = 1,072,181,151.60

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Double scale
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Similar ratio
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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.