Home / 291,994,905,385.48-402,947,636,088.96-161,783,285,041.84

Finding the Fourth Proportional to 291,994,905,385.48, 402,947,636,088.96 and 161,783,285,041.84

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Solution

The fourth proportional to 291,994,905,385.48, 402,947,636,088.96 and 161,783,285,041.84 is: 223,257,978,354.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,994,905,385.48 : 402,947,636,088.96 = 161,783,285,041.84 : x
  2. Step 2: Convert to fraction form
    291,994,905,385.48/402,947,636,088.96 = 161,783,285,041.84/x
  3. Step 3: Cross multiply
    291,994,905,385.48x = 402,947,636,088.96 × 161,783,285,041.84
  4. Step 4: Simplify right side
    291,994,905,385.48x = 65,190,192,266,315,835,637,760
  5. Step 5: Solve for x
    x = 65,190,192,266,315,835,637,760/291,994,905,385.48
  6. Step 6: Final answer
    x = 223,257,978,354.98

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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.