Home / 649,996,619.58-896,997,038.40-352,638,846.36

Finding the Fourth Proportional to 649,996,619.58, 896,997,038.40 and 352,638,846.36

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Solution

The fourth proportional to 649,996,619.58, 896,997,038.40 and 352,638,846.36 is: 486,642,532.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,996,619.58 : 896,997,038.40 = 352,638,846.36 : x
  2. Step 2: Convert to fraction form
    649,996,619.58/896,997,038.40 = 352,638,846.36/x
  3. Step 3: Cross multiply
    649,996,619.58x = 896,997,038.40 × 352,638,846.36
  4. Step 4: Simplify right side
    649,996,619.58x = 316,316,000,809,712,640
  5. Step 5: Solve for x
    x = 316,316,000,809,712,640/649,996,619.58
  6. Step 6: Final answer
    x = 486,642,532.10

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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.