Home / 66,051,031.80-99,076,547.70-20,606,921.40

Finding the Fourth Proportional to 66,051,031.80, 99,076,547.70 and 20,606,921.40

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Solution

The fourth proportional to 66,051,031.80, 99,076,547.70 and 20,606,921.40 is: 30,910,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,051,031.80 : 99,076,547.70 = 20,606,921.40 : x
  2. Step 2: Convert to fraction form
    66,051,031.80/99,076,547.70 = 20,606,921.40/x
  3. Step 3: Cross multiply
    66,051,031.80x = 99,076,547.70 × 20,606,921.40
  4. Step 4: Simplify right side
    66,051,031.80x = 2,041,662,631,037,250.75
  5. Step 5: Solve for x
    x = 2,041,662,631,037,250.75/66,051,031.80
  6. Step 6: Final answer
    x = 30,910,382.10

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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.