Home / 74,782,079.40-112,173,119.10-70,247,116.20

Finding the Fourth Proportional to 74,782,079.40, 112,173,119.10 and 70,247,116.20

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Solution

The fourth proportional to 74,782,079.40, 112,173,119.10 and 70,247,116.20 is: 105,370,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,782,079.40 : 112,173,119.10 = 70,247,116.20 : x
  2. Step 2: Convert to fraction form
    74,782,079.40/112,173,119.10 = 70,247,116.20/x
  3. Step 3: Cross multiply
    74,782,079.40x = 112,173,119.10 × 70,247,116.20
  4. Step 4: Simplify right side
    74,782,079.40x = 7,879,838,131,934,139
  5. Step 5: Solve for x
    x = 7,879,838,131,934,139/74,782,079.40
  6. Step 6: Final answer
    x = 105,370,674.30

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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.