Home / 405,045,926.88-558,966,062.40-219,406,940.76

Finding the Fourth Proportional to 405,045,926.88, 558,966,062.40 and 219,406,940.76

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Solution

The fourth proportional to 405,045,926.88, 558,966,062.40 and 219,406,940.76 is: 302,783,031.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,045,926.88 : 558,966,062.40 = 219,406,940.76 : x
  2. Step 2: Convert to fraction form
    405,045,926.88/558,966,062.40 = 219,406,940.76/x
  3. Step 3: Cross multiply
    405,045,926.88x = 558,966,062.40 × 219,406,940.76
  4. Step 4: Simplify right side
    405,045,926.88x = 122,641,033,739,847,248
  5. Step 5: Solve for x
    x = 122,641,033,739,847,248/405,045,926.88
  6. Step 6: Final answer
    x = 302,783,031.75

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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.