Home / 1,296,153,938.79-1,944,235,952.30-313,578,901.59

Finding the Fourth Proportional to 1,296,153,938.79, 1,944,235,952.30 and 313,578,901.59

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Solution

The fourth proportional to 1,296,153,938.79, 1,944,235,952.30 and 313,578,901.59 is: 470,369,572.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,153,938.79 : 1,944,235,952.30 = 313,578,901.59 : x
  2. Step 2: Convert to fraction form
    1,296,153,938.79/1,944,235,952.30 = 313,578,901.59/x
  3. Step 3: Cross multiply
    1,296,153,938.79x = 1,944,235,952.30 × 313,578,901.59
  4. Step 4: Simplify right side
    1,296,153,938.79x = 609,671,374,352,453,760
  5. Step 5: Solve for x
    x = 609,671,374,352,453,760/1,296,153,938.79
  6. Step 6: Final answer
    x = 470,369,572.71

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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.