Home / 630,947,855.40-946,421,783.10-523,452,431.40

Finding the Fourth Proportional to 630,947,855.40, 946,421,783.10 and 523,452,431.40

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Solution

The fourth proportional to 630,947,855.40, 946,421,783.10 and 523,452,431.40 is: 785,178,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,947,855.40 : 946,421,783.10 = 523,452,431.40 : x
  2. Step 2: Convert to fraction form
    630,947,855.40/946,421,783.10 = 523,452,431.40/x
  3. Step 3: Cross multiply
    630,947,855.40x = 946,421,783.10 × 523,452,431.40
  4. Step 4: Simplify right side
    630,947,855.40x = 495,406,783,493,618,432
  5. Step 5: Solve for x
    x = 495,406,783,493,618,432/630,947,855.40
  6. Step 6: Final answer
    x = 785,178,647.10

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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.