Home / 217,242,603.40-325,863,905.10-71,698,628.20

Finding the Fourth Proportional to 217,242,603.40, 325,863,905.10 and 71,698,628.20

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Solution

The fourth proportional to 217,242,603.40, 325,863,905.10 and 71,698,628.20 is: 107,547,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,242,603.40 : 325,863,905.10 = 71,698,628.20 : x
  2. Step 2: Convert to fraction form
    217,242,603.40/325,863,905.10 = 71,698,628.20/x
  3. Step 3: Cross multiply
    217,242,603.40x = 325,863,905.10 × 71,698,628.20
  4. Step 4: Simplify right side
    217,242,603.40x = 23,363,994,975,564,988
  5. Step 5: Solve for x
    x = 23,363,994,975,564,988/217,242,603.40
  6. Step 6: Final answer
    x = 107,547,942.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.