Home / 426,249,188.40-639,373,806.90-103,133,060.40

Finding the Fourth Proportional to 426,249,188.40, 639,373,806.90 and 103,133,060.40

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Solution

The fourth proportional to 426,249,188.40, 639,373,806.90 and 103,133,060.40 is: 154,699,596.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,249,188.40 : 639,373,806.90 = 103,133,060.40 : x
  2. Step 2: Convert to fraction form
    426,249,188.40/639,373,806.90 = 103,133,060.40/x
  3. Step 3: Cross multiply
    426,249,188.40x = 639,373,806.90 × 103,133,060.40
  4. Step 4: Simplify right side
    426,249,188.40x = 65,940,577,445,195,640
  5. Step 5: Solve for x
    x = 65,940,577,445,195,640/426,249,188.40
  6. Step 6: Final answer
    x = 154,699,596.48

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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.