Home / 1,198,119,782.90-1,653,569,549.90-689,472,042.72

Finding the Fourth Proportional to 1,198,119,782.90, 1,653,569,549.90 and 689,472,042.72

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Solution

The fourth proportional to 1,198,119,782.90, 1,653,569,549.90 and 689,472,042.72 is: 951,565,938.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,119,782.90 : 1,653,569,549.90 = 689,472,042.72 : x
  2. Step 2: Convert to fraction form
    1,198,119,782.90/1,653,569,549.90 = 689,472,042.72/x
  3. Step 3: Cross multiply
    1,198,119,782.90x = 1,653,569,549.90 × 689,472,042.72
  4. Step 4: Simplify right side
    1,198,119,782.90x = 1,140,089,975,349,144,064
  5. Step 5: Solve for x
    x = 1,140,089,975,349,144,064/1,198,119,782.90
  6. Step 6: Final answer
    x = 951,565,938.25

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Double scale
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1.5x scale

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.