Home / 278,451,538,824.61-417,251,001,088.80-187,355,538,354.67

Finding the Fourth Proportional to 278,451,538,824.61, 417,251,001,088.80 and 187,355,538,354.67

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Solution

The fourth proportional to 278,451,538,824.61, 417,251,001,088.80 and 187,355,538,354.67 is: 280,746,467,654.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,451,538,824.61 : 417,251,001,088.80 = 187,355,538,354.67 : x
  2. Step 2: Convert to fraction form
    278,451,538,824.61/417,251,001,088.80 = 187,355,538,354.67/x
  3. Step 3: Cross multiply
    278,451,538,824.61x = 417,251,001,088.80 × 187,355,538,354.67
  4. Step 4: Simplify right side
    278,451,538,824.61x = 78,174,285,938,017,121,075,200
  5. Step 5: Solve for x
    x = 78,174,285,938,017,121,075,200/278,451,538,824.61
  6. Step 6: Final answer
    x = 280,746,467,654.67

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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.