Home / 1,653,742,012.08-2,480,482,847.34-721,042,849.20

Finding the Fourth Proportional to 1,653,742,012.08, 2,480,482,847.34 and 721,042,849.20

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Solution

The fourth proportional to 1,653,742,012.08, 2,480,482,847.34 and 721,042,849.20 is: 1,081,507,518.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653,742,012.08 : 2,480,482,847.34 = 721,042,849.20 : x
  2. Step 2: Convert to fraction form
    1,653,742,012.08/2,480,482,847.34 = 721,042,849.20/x
  3. Step 3: Cross multiply
    1,653,742,012.08x = 2,480,482,847.34 × 721,042,849.20
  4. Step 4: Simplify right side
    1,653,742,012.08x = 1,788,534,419,637,762,560
  5. Step 5: Solve for x
    x = 1,788,534,419,637,762,560/1,653,742,012.08
  6. Step 6: Final answer
    x = 1,081,507,518.45

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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.