Home / 66,274,023.81-99,426,683.70-20,835,818.31

Finding the Fourth Proportional to 66,274,023.81, 99,426,683.70 and 20,835,818.31

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Solution

The fourth proportional to 66,274,023.81, 99,426,683.70 and 20,835,818.31 is: 31,258,647.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,274,023.81 : 99,426,683.70 = 20,835,818.31 : x
  2. Step 2: Convert to fraction form
    66,274,023.81/99,426,683.70 = 20,835,818.31/x
  3. Step 3: Cross multiply
    66,274,023.81x = 99,426,683.70 × 20,835,818.31
  4. Step 4: Simplify right side
    66,274,023.81x = 2,071,636,316,739,038.50
  5. Step 5: Solve for x
    x = 2,071,636,316,739,038.50/66,274,023.81
  6. Step 6: Final answer
    x = 31,258,647.02

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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.