Home / 66,464,259.40-99,705,720.30-21,021,315.40

Finding the Fourth Proportional to 66,464,259.40, 99,705,720.30 and 21,021,315.40

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Solution

The fourth proportional to 66,464,259.40, 99,705,720.30 and 21,021,315.40 is: 31,534,924.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,464,259.40 : 99,705,720.30 = 21,021,315.40 : x
  2. Step 2: Convert to fraction form
    66,464,259.40/99,705,720.30 = 21,021,315.40/x
  3. Step 3: Cross multiply
    66,464,259.40x = 99,705,720.30 × 21,021,315.40
  4. Step 4: Simplify right side
    66,464,259.40x = 2,095,945,393,610,482.50
  5. Step 5: Solve for x
    x = 2,095,945,393,610,482.50/66,464,259.40
  6. Step 6: Final answer
    x = 31,534,924.37

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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.