Home / 315,519,326.85-473,303,420.28-105,430,739.12

Finding the Fourth Proportional to 315,519,326.85, 473,303,420.28 and 105,430,739.12

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Solution

The fourth proportional to 315,519,326.85, 473,303,420.28 and 105,430,739.12 is: 158,154,271.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,519,326.85 : 473,303,420.28 = 105,430,739.12 : x
  2. Step 2: Convert to fraction form
    315,519,326.85/473,303,420.28 = 105,430,739.12/x
  3. Step 3: Cross multiply
    315,519,326.85x = 473,303,420.28 × 105,430,739.12
  4. Step 4: Simplify right side
    315,519,326.85x = 49,900,729,428,144,400
  5. Step 5: Solve for x
    x = 49,900,729,428,144,400/315,519,326.85
  6. Step 6: Final answer
    x = 158,154,271.96

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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.