Home / 1,018,816,452.24-1,405,971,465.36-578,807,448.72

Finding the Fourth Proportional to 1,018,816,452.24, 1,405,971,465.36 and 578,807,448.72

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Solution

The fourth proportional to 1,018,816,452.24, 1,405,971,465.36 and 578,807,448.72 is: 798,756,984.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,816,452.24 : 1,405,971,465.36 = 578,807,448.72 : x
  2. Step 2: Convert to fraction form
    1,018,816,452.24/1,405,971,465.36 = 578,807,448.72/x
  3. Step 3: Cross multiply
    1,018,816,452.24x = 1,405,971,465.36 × 578,807,448.72
  4. Step 4: Simplify right side
    1,018,816,452.24x = 813,786,756,838,141,440
  5. Step 5: Solve for x
    x = 813,786,756,838,141,440/1,018,816,452.24
  6. Step 6: Final answer
    x = 798,756,984.19

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Double scale
Find fourth proportional to 1,018,816,453.24, 1,405,971,466.74 and 578,807,449.72
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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.