Home / 8,905,807,307.79-12,290,254,087.59-5,239,739,586.48

Finding the Fourth Proportional to 8,905,807,307.79, 12,290,254,087.59 and 5,239,739,586.48

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Solution

The fourth proportional to 8,905,807,307.79, 12,290,254,087.59 and 5,239,739,586.48 is: 7,230,981,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905,807,307.79 : 12,290,254,087.59 = 5,239,739,586.48 : x
  2. Step 2: Convert to fraction form
    8,905,807,307.79/12,290,254,087.59 = 5,239,739,586.48/x
  3. Step 3: Cross multiply
    8,905,807,307.79x = 12,290,254,087.59 × 5,239,739,586.48
  4. Step 4: Simplify right side
    8,905,807,307.79x = 64,397,730,870,642,950,144
  5. Step 5: Solve for x
    x = 64,397,730,870,642,950,144/8,905,807,307.79
  6. Step 6: Final answer
    x = 7,230,981,835.22

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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.