Home / 76,808,997,109.78-105,994,114,901.06-42,516,109,319.30

Finding the Fourth Proportional to 76,808,997,109.78, 105,994,114,901.06 and 42,516,109,319.30

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Solution

The fourth proportional to 76,808,997,109.78, 105,994,114,901.06 and 42,516,109,319.30 is: 58,670,957,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,808,997,109.78 : 105,994,114,901.06 = 42,516,109,319.30 : x
  2. Step 2: Convert to fraction form
    76,808,997,109.78/105,994,114,901.06 = 42,516,109,319.30/x
  3. Step 3: Cross multiply
    76,808,997,109.78x = 105,994,114,901.06 × 42,516,109,319.30
  4. Step 4: Simplify right side
    76,808,997,109.78x = 4,506,457,376,335,912,239,104
  5. Step 5: Solve for x
    x = 4,506,457,376,335,912,239,104/76,808,997,109.78
  6. Step 6: Final answer
    x = 58,670,957,126.22

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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.