Home / 13,854,779.40-19,119,030.70-7,659,431.80

Finding the Fourth Proportional to 13,854,779.40, 19,119,030.70 and 7,659,431.80

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Solution

The fourth proportional to 13,854,779.40, 19,119,030.70 and 7,659,431.80 is: 10,569,703.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854,779.40 : 19,119,030.70 = 7,659,431.80 : x
  2. Step 2: Convert to fraction form
    13,854,779.40/19,119,030.70 = 7,659,431.80/x
  3. Step 3: Cross multiply
    13,854,779.40x = 19,119,030.70 × 7,659,431.80
  4. Step 4: Simplify right side
    13,854,779.40x = 146,440,911,728,756.25
  5. Step 5: Solve for x
    x = 146,440,911,728,756.25/13,854,779.40
  6. Step 6: Final answer
    x = 10,569,703.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.