Home / 930,314,947.09-1,394,157,102.10-515,974,314.23

Finding the Fourth Proportional to 930,314,947.09, 1,394,157,102.10 and 515,974,314.23

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Solution

The fourth proportional to 930,314,947.09, 1,394,157,102.10 and 515,974,314.23 is: 773,231,965.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,314,947.09 : 1,394,157,102.10 = 515,974,314.23 : x
  2. Step 2: Convert to fraction form
    930,314,947.09/1,394,157,102.10 = 515,974,314.23/x
  3. Step 3: Cross multiply
    930,314,947.09x = 1,394,157,102.10 × 515,974,314.23
  4. Step 4: Simplify right side
    930,314,947.09x = 719,349,254,684,931,584
  5. Step 5: Solve for x
    x = 719,349,254,684,931,584/930,314,947.09
  6. Step 6: Final answer
    x = 773,231,965.08

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Double scale
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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.