Home / 129,024,808.40-193,537,212.60-81,249,064.40

Finding the Fourth Proportional to 129,024,808.40, 193,537,212.60 and 81,249,064.40

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Solution

The fourth proportional to 129,024,808.40, 193,537,212.60 and 81,249,064.40 is: 121,873,596.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,024,808.40 : 193,537,212.60 = 81,249,064.40 : x
  2. Step 2: Convert to fraction form
    129,024,808.40/193,537,212.60 = 81,249,064.40/x
  3. Step 3: Cross multiply
    129,024,808.40x = 193,537,212.60 × 81,249,064.40
  4. Step 4: Simplify right side
    129,024,808.40x = 15,724,717,450,333,892
  5. Step 5: Solve for x
    x = 15,724,717,450,333,892/129,024,808.40
  6. Step 6: Final answer
    x = 121,873,596.60

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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.