Home / 430,927,419.92-644,030,019.22-314,587,760.75

Finding the Fourth Proportional to 430,927,419.92, 644,030,019.22 and 314,587,760.75

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Solution

The fourth proportional to 430,927,419.92, 644,030,019.22 and 314,587,760.75 is: 470,157,971.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,927,419.92 : 644,030,019.22 = 314,587,760.75 : x
  2. Step 2: Convert to fraction form
    430,927,419.92/644,030,019.22 = 314,587,760.75/x
  3. Step 3: Cross multiply
    430,927,419.92x = 644,030,019.22 × 314,587,760.75
  4. Step 4: Simplify right side
    430,927,419.92x = 202,603,961,597,406,176
  5. Step 5: Solve for x
    x = 202,603,961,597,406,176/430,927,419.92
  6. Step 6: Final answer
    x = 470,157,971.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.