Home / 1,145,115,320.40-1,717,672,980.72-531,495,608.40

Finding the Fourth Proportional to 1,145,115,320.40, 1,717,672,980.72 and 531,495,608.40

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Solution

The fourth proportional to 1,145,115,320.40, 1,717,672,980.72 and 531,495,608.40 is: 797,243,412.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,115,320.40 : 1,717,672,980.72 = 531,495,608.40 : x
  2. Step 2: Convert to fraction form
    1,145,115,320.40/1,717,672,980.72 = 531,495,608.40/x
  3. Step 3: Cross multiply
    1,145,115,320.40x = 1,717,672,980.72 × 531,495,608.40
  4. Step 4: Simplify right side
    1,145,115,320.40x = 912,935,645,920,017,792
  5. Step 5: Solve for x
    x = 912,935,645,920,017,792/1,145,115,320.40
  6. Step 6: Final answer
    x = 797,243,412.66

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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.