Home / 66,430,203.40-99,645,305.10-40,788,065.80

Finding the Fourth Proportional to 66,430,203.40, 99,645,305.10 and 40,788,065.80

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Solution

The fourth proportional to 66,430,203.40, 99,645,305.10 and 40,788,065.80 is: 61,182,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,203.40 : 99,645,305.10 = 40,788,065.80 : x
  2. Step 2: Convert to fraction form
    66,430,203.40/99,645,305.10 = 40,788,065.80/x
  3. Step 3: Cross multiply
    66,430,203.40x = 99,645,305.10 × 40,788,065.80
  4. Step 4: Simplify right side
    66,430,203.40x = 4,064,339,261,079,875
  5. Step 5: Solve for x
    x = 4,064,339,261,079,875/66,430,203.40
  6. Step 6: Final answer
    x = 61,182,098.70

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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.