Home / 76,808,997,108.78-105,994,114,899.68-42,516,109,318.30

Finding the Fourth Proportional to 76,808,997,108.78, 105,994,114,899.68 and 42,516,109,318.30

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Solution

The fourth proportional to 76,808,997,108.78, 105,994,114,899.68 and 42,516,109,318.30 is: 58,670,957,124.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,808,997,108.78 : 105,994,114,899.68 = 42,516,109,318.30 : x
  2. Step 2: Convert to fraction form
    76,808,997,108.78/105,994,114,899.68 = 42,516,109,318.30/x
  3. Step 3: Cross multiply
    76,808,997,108.78x = 105,994,114,899.68 × 42,516,109,318.30
  4. Step 4: Simplify right side
    76,808,997,108.78x = 4,506,457,376,171,245,961,216
  5. Step 5: Solve for x
    x = 4,506,457,376,171,245,961,216/76,808,997,108.78
  6. Step 6: Final answer
    x = 58,670,957,124.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.