Home / 154,904,341,635.40-213,765,818,509.38-86,318,645,503.72

Finding the Fourth Proportional to 154,904,341,635.40, 213,765,818,509.38 and 86,318,645,503.72

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Solution

The fourth proportional to 154,904,341,635.40, 213,765,818,509.38 and 86,318,645,503.72 is: 119,118,519,945.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,904,341,635.40 : 213,765,818,509.38 = 86,318,645,503.72 : x
  2. Step 2: Convert to fraction form
    154,904,341,635.40/213,765,818,509.38 = 86,318,645,503.72/x
  3. Step 3: Cross multiply
    154,904,341,635.40x = 213,765,818,509.38 × 86,318,645,503.72
  4. Step 4: Simplify right side
    154,904,341,635.40x = 18,451,975,908,723,720,716,288
  5. Step 5: Solve for x
    x = 18,451,975,908,723,720,716,288/154,904,341,635.40
  6. Step 6: Final answer
    x = 119,118,519,945.39

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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.