Home / 70,343,138.40-105,514,707.60-58,249,903.20

Finding the Fourth Proportional to 70,343,138.40, 105,514,707.60 and 58,249,903.20

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Solution

The fourth proportional to 70,343,138.40, 105,514,707.60 and 58,249,903.20 is: 87,374,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,343,138.40 : 105,514,707.60 = 58,249,903.20 : x
  2. Step 2: Convert to fraction form
    70,343,138.40/105,514,707.60 = 58,249,903.20/x
  3. Step 3: Cross multiply
    70,343,138.40x = 105,514,707.60 × 58,249,903.20
  4. Step 4: Simplify right side
    70,343,138.40x = 6,146,221,503,876,304
  5. Step 5: Solve for x
    x = 6,146,221,503,876,304/70,343,138.40
  6. Step 6: Final answer
    x = 87,374,854.80

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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.