Home / 49,908,985.20-74,863,477.80-30,509,420.40

Finding the Fourth Proportional to 49,908,985.20, 74,863,477.80 and 30,509,420.40

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Solution

The fourth proportional to 49,908,985.20, 74,863,477.80 and 30,509,420.40 is: 45,764,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,908,985.20 : 74,863,477.80 = 30,509,420.40 : x
  2. Step 2: Convert to fraction form
    49,908,985.20/74,863,477.80 = 30,509,420.40/x
  3. Step 3: Cross multiply
    49,908,985.20x = 74,863,477.80 × 30,509,420.40
  4. Step 4: Simplify right side
    49,908,985.20x = 2,284,041,316,806,267
  5. Step 5: Solve for x
    x = 2,284,041,316,806,267/49,908,985.20
  6. Step 6: Final answer
    x = 45,764,130.60

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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.