Home / 1,216,365,357,010.40-1,678,585,854,921.10-660,170,492,492.20

Finding the Fourth Proportional to 1,216,365,357,010.40, 1,678,585,854,921.10 and 660,170,492,492.20

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Solution

The fourth proportional to 1,216,365,357,010.40, 1,678,585,854,921.10 and 660,170,492,492.20 is: 911,036,181,807.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,365,357,010.40 : 1,678,585,854,921.10 = 660,170,492,492.20 : x
  2. Step 2: Convert to fraction form
    1,216,365,357,010.40/1,678,585,854,921.10 = 660,170,492,492.20/x
  3. Step 3: Cross multiply
    1,216,365,357,010.40x = 1,678,585,854,921.10 × 660,170,492,492.20
  4. Step 4: Simplify right side
    1,216,365,357,010.40x = 1,108,152,850,533,703,189,790,720
  5. Step 5: Solve for x
    x = 1,108,152,850,533,703,189,790,720/1,216,365,357,010.40
  6. Step 6: Final answer
    x = 911,036,181,807.53

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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.