Home / 14,078,779.56-19,428,715.80-7,640,251.56

Finding the Fourth Proportional to 14,078,779.56, 19,428,715.80 and 7,640,251.56

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Solution

The fourth proportional to 14,078,779.56, 19,428,715.80 and 7,640,251.56 is: 10,543,547.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078,779.56 : 19,428,715.80 = 7,640,251.56 : x
  2. Step 2: Convert to fraction form
    14,078,779.56/19,428,715.80 = 7,640,251.56/x
  3. Step 3: Cross multiply
    14,078,779.56x = 19,428,715.80 × 7,640,251.56
  4. Step 4: Simplify right side
    14,078,779.56x = 148,440,276,199,746.66
  5. Step 5: Solve for x
    x = 148,440,276,199,746.66/14,078,779.56
  6. Step 6: Final answer
    x = 10,543,547.16

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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.