Home / 974,912,853.11-1,345,026,665.54-640,565,453.03

Finding the Fourth Proportional to 974,912,853.11, 1,345,026,665.54 and 640,565,453.03

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Solution

The fourth proportional to 974,912,853.11, 1,345,026,665.54 and 640,565,453.03 is: 883,748,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,912,853.11 : 1,345,026,665.54 = 640,565,453.03 : x
  2. Step 2: Convert to fraction form
    974,912,853.11/1,345,026,665.54 = 640,565,453.03/x
  3. Step 3: Cross multiply
    974,912,853.11x = 1,345,026,665.54 × 640,565,453.03
  4. Step 4: Simplify right side
    974,912,853.11x = 861,577,615,343,936,640
  5. Step 5: Solve for x
    x = 861,577,615,343,936,640/974,912,853.11
  6. Step 6: Final answer
    x = 883,748,339.76

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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.