Home / 76,655,615.20-114,983,422.80-40,249,938.40

Finding the Fourth Proportional to 76,655,615.20, 114,983,422.80 and 40,249,938.40

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Solution

The fourth proportional to 76,655,615.20, 114,983,422.80 and 40,249,938.40 is: 60,374,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,655,615.20 : 114,983,422.80 = 40,249,938.40 : x
  2. Step 2: Convert to fraction form
    76,655,615.20/114,983,422.80 = 40,249,938.40/x
  3. Step 3: Cross multiply
    76,655,615.20x = 114,983,422.80 × 40,249,938.40
  4. Step 4: Simplify right side
    76,655,615.20x = 4,628,075,684,721,155
  5. Step 5: Solve for x
    x = 4,628,075,684,721,155/76,655,615.20
  6. Step 6: Final answer
    x = 60,374,907.60

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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.