Home / 1,278,061,572.79-1,763,590,609.74-742,108,472.65

Finding the Fourth Proportional to 1,278,061,572.79, 1,763,590,609.74 and 742,108,472.65

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Solution

The fourth proportional to 1,278,061,572.79, 1,763,590,609.74 and 742,108,472.65 is: 1,024,031,675.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,061,572.79 : 1,763,590,609.74 = 742,108,472.65 : x
  2. Step 2: Convert to fraction form
    1,278,061,572.79/1,763,590,609.74 = 742,108,472.65/x
  3. Step 3: Cross multiply
    1,278,061,572.79x = 1,763,590,609.74 × 742,108,472.65
  4. Step 4: Simplify right side
    1,278,061,572.79x = 1,308,775,533,774,033,664
  5. Step 5: Solve for x
    x = 1,308,775,533,774,033,664/1,278,061,572.79
  6. Step 6: Final answer
    x = 1,024,031,675.50

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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.