Home / 12,864,429,379.96-17,753,446,271.08-7,148,692,464.28

Finding the Fourth Proportional to 12,864,429,379.96, 17,753,446,271.08 and 7,148,692,464.28

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Solution

The fourth proportional to 12,864,429,379.96, 17,753,446,271.08 and 7,148,692,464.28 is: 9,865,492,189.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864,429,379.96 : 17,753,446,271.08 = 7,148,692,464.28 : x
  2. Step 2: Convert to fraction form
    12,864,429,379.96/17,753,446,271.08 = 7,148,692,464.28/x
  3. Step 3: Cross multiply
    12,864,429,379.96x = 17,753,446,271.08 × 7,148,692,464.28
  4. Step 4: Simplify right side
    12,864,429,379.96x = 126,913,927,573,069,463,552
  5. Step 5: Solve for x
    x = 126,913,927,573,069,463,552/12,864,429,379.96
  6. Step 6: Final answer
    x = 9,865,492,189.71

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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.