Home / 287,346,359.60-431,075,526.60-114,793,809.20

Finding the Fourth Proportional to 287,346,359.60, 431,075,526.60 and 114,793,809.20

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Solution

The fourth proportional to 287,346,359.60, 431,075,526.60 and 114,793,809.20 is: 172,213,080.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,346,359.60 : 431,075,526.60 = 114,793,809.20 : x
  2. Step 2: Convert to fraction form
    287,346,359.60/431,075,526.60 = 114,793,809.20/x
  3. Step 3: Cross multiply
    287,346,359.60x = 431,075,526.60 × 114,793,809.20
  4. Step 4: Simplify right side
    287,346,359.60x = 49,484,801,751,309,928
  5. Step 5: Solve for x
    x = 49,484,801,751,309,928/287,346,359.60
  6. Step 6: Final answer
    x = 172,213,080.48

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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.