Home / 397,964,728.17-549,183,966.72-216,913,271.67

Finding the Fourth Proportional to 397,964,728.17, 549,183,966.72 and 216,913,271.67

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Solution

The fourth proportional to 397,964,728.17, 549,183,966.72 and 216,913,271.67 is: 299,336,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,964,728.17 : 549,183,966.72 = 216,913,271.67 : x
  2. Step 2: Convert to fraction form
    397,964,728.17/549,183,966.72 = 216,913,271.67/x
  3. Step 3: Cross multiply
    397,964,728.17x = 549,183,966.72 × 216,913,271.67
  4. Step 4: Simplify right side
    397,964,728.17x = 119,125,290,969,943,600
  5. Step 5: Solve for x
    x = 119,125,290,969,943,600/397,964,728.17
  6. Step 6: Final answer
    x = 299,336,304.29

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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.