Home / 1,512,675,945.67-2,087,492,809.04-817,314,921.67

Finding the Fourth Proportional to 1,512,675,945.67, 2,087,492,809.04 and 817,314,921.67

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Solution

The fourth proportional to 1,512,675,945.67, 2,087,492,809.04 and 817,314,921.67 is: 1,127,894,594.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,675,945.67 : 2,087,492,809.04 = 817,314,921.67 : x
  2. Step 2: Convert to fraction form
    1,512,675,945.67/2,087,492,809.04 = 817,314,921.67/x
  3. Step 3: Cross multiply
    1,512,675,945.67x = 2,087,492,809.04 × 817,314,921.67
  4. Step 4: Simplify right side
    1,512,675,945.67x = 1,706,139,021,707,215,872
  5. Step 5: Solve for x
    x = 1,706,139,021,707,215,872/1,512,675,945.67
  6. Step 6: Final answer
    x = 1,127,894,594.07

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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.