Home / 9,212,038.96-12,712,635.84-5,137,920.40

Finding the Fourth Proportional to 9,212,038.96, 12,712,635.84 and 5,137,920.40

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Solution

The fourth proportional to 9,212,038.96, 12,712,635.84 and 5,137,920.40 is: 7,090,342.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212,038.96 : 12,712,635.84 = 5,137,920.40 : x
  2. Step 2: Convert to fraction form
    9,212,038.96/12,712,635.84 = 5,137,920.40/x
  3. Step 3: Cross multiply
    9,212,038.96x = 12,712,635.84 × 5,137,920.40
  4. Step 4: Simplify right side
    9,212,038.96x = 65,316,511,020,107.14
  5. Step 5: Solve for x
    x = 65,316,511,020,107.14/9,212,038.96
  6. Step 6: Final answer
    x = 7,090,342.46

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1.5x scale

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.