Home / 155,075,742.34-214,004,528.81-85,461,123.22

Finding the Fourth Proportional to 155,075,742.34, 214,004,528.81 and 85,461,123.22

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Solution

The fourth proportional to 155,075,742.34, 214,004,528.81 and 85,461,123.22 is: 117,936,352.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,075,742.34 : 214,004,528.81 = 85,461,123.22 : x
  2. Step 2: Convert to fraction form
    155,075,742.34/214,004,528.81 = 85,461,123.22/x
  3. Step 3: Cross multiply
    155,075,742.34x = 214,004,528.81 × 85,461,123.22
  4. Step 4: Simplify right side
    155,075,742.34x = 18,289,067,406,538,604
  5. Step 5: Solve for x
    x = 18,289,067,406,538,604/155,075,742.34
  6. Step 6: Final answer
    x = 117,936,352.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.