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Finding the Fourth Proportional to 30,602,615.40, 45,903,923.10 and 26,616,807.90

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Solution

The fourth proportional to 30,602,615.40, 45,903,923.10 and 26,616,807.90 is: 39,925,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,602,615.40 : 45,903,923.10 = 26,616,807.90 : x
  2. Step 2: Convert to fraction form
    30,602,615.40/45,903,923.10 = 26,616,807.90/x
  3. Step 3: Cross multiply
    30,602,615.40x = 45,903,923.10 × 26,616,807.90
  4. Step 4: Simplify right side
    30,602,615.40x = 1,221,815,903,009,072.50
  5. Step 5: Solve for x
    x = 1,221,815,903,009,072.50/30,602,615.40
  6. Step 6: Final answer
    x = 39,925,211.85

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1.5x scale

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.