Home / 191,720,674,881.60-287,581,012,322.40-80,005,824,542.40

Finding the Fourth Proportional to 191,720,674,881.60, 287,581,012,322.40 and 80,005,824,542.40

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Solution

The fourth proportional to 191,720,674,881.60, 287,581,012,322.40 and 80,005,824,542.40 is: 120,008,736,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,720,674,881.60 : 287,581,012,322.40 = 80,005,824,542.40 : x
  2. Step 2: Convert to fraction form
    191,720,674,881.60/287,581,012,322.40 = 80,005,824,542.40/x
  3. Step 3: Cross multiply
    191,720,674,881.60x = 287,581,012,322.40 × 80,005,824,542.40
  4. Step 4: Simplify right side
    191,720,674,881.60x = 23,008,156,013,591,705,681,920
  5. Step 5: Solve for x
    x = 23,008,156,013,591,705,681,920/191,720,674,881.60
  6. Step 6: Final answer
    x = 120,008,736,813.60

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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.