Home / 992,868,382.40-1,489,302,573.60-839,813,374.40

Finding the Fourth Proportional to 992,868,382.40, 1,489,302,573.60 and 839,813,374.40

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Solution

The fourth proportional to 992,868,382.40, 1,489,302,573.60 and 839,813,374.40 is: 1,259,720,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,868,382.40 : 1,489,302,573.60 = 839,813,374.40 : x
  2. Step 2: Convert to fraction form
    992,868,382.40/1,489,302,573.60 = 839,813,374.40/x
  3. Step 3: Cross multiply
    992,868,382.40x = 1,489,302,573.60 × 839,813,374.40
  4. Step 4: Simplify right side
    992,868,382.40x = 1,250,736,219,837,620,224
  5. Step 5: Solve for x
    x = 1,250,736,219,837,620,224/992,868,382.40
  6. Step 6: Final answer
    x = 1,259,720,061.60

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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.