Home / 1,019,905,482.60-1,529,858,223.90-815,832,138.60

Finding the Fourth Proportional to 1,019,905,482.60, 1,529,858,223.90 and 815,832,138.60

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Solution

The fourth proportional to 1,019,905,482.60, 1,529,858,223.90 and 815,832,138.60 is: 1,223,748,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,905,482.60 : 1,529,858,223.90 = 815,832,138.60 : x
  2. Step 2: Convert to fraction form
    1,019,905,482.60/1,529,858,223.90 = 815,832,138.60/x
  3. Step 3: Cross multiply
    1,019,905,482.60x = 1,529,858,223.90 × 815,832,138.60
  4. Step 4: Simplify right side
    1,019,905,482.60x = 1,248,107,506,559,134,720
  5. Step 5: Solve for x
    x = 1,248,107,506,559,134,720/1,019,905,482.60
  6. Step 6: Final answer
    x = 1,223,748,207.90

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Double scale
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Similar ratio
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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.