Home / 459,331,280,145.60-688,996,920,218.40-123,945,667,490.40

Finding the Fourth Proportional to 459,331,280,145.60, 688,996,920,218.40 and 123,945,667,490.40

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Solution

The fourth proportional to 459,331,280,145.60, 688,996,920,218.40 and 123,945,667,490.40 is: 185,918,501,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,331,280,145.60 : 688,996,920,218.40 = 123,945,667,490.40 : x
  2. Step 2: Convert to fraction form
    459,331,280,145.60/688,996,920,218.40 = 123,945,667,490.40/x
  3. Step 3: Cross multiply
    459,331,280,145.60x = 688,996,920,218.40 × 123,945,667,490.40
  4. Step 4: Simplify right side
    459,331,280,145.60x = 85,398,183,175,299,467,837,440
  5. Step 5: Solve for x
    x = 85,398,183,175,299,467,837,440/459,331,280,145.60
  6. Step 6: Final answer
    x = 185,918,501,235.60

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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.