Home / 318,487,049.55-439,285,726.98-212,587,071.75

Finding the Fourth Proportional to 318,487,049.55, 439,285,726.98 and 212,587,071.75

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Solution

The fourth proportional to 318,487,049.55, 439,285,726.98 and 212,587,071.75 is: 293,219,038.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,487,049.55 : 439,285,726.98 = 212,587,071.75 : x
  2. Step 2: Convert to fraction form
    318,487,049.55/439,285,726.98 = 212,587,071.75/x
  3. Step 3: Cross multiply
    318,487,049.55x = 439,285,726.98 × 212,587,071.75
  4. Step 4: Simplify right side
    318,487,049.55x = 93,386,466,360,248,176
  5. Step 5: Solve for x
    x = 93,386,466,360,248,176/318,487,049.55
  6. Step 6: Final answer
    x = 293,219,038.24

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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.