Home / 670,703,852.40-1,005,779,808.36-256,333,720.56

Finding the Fourth Proportional to 670,703,852.40, 1,005,779,808.36 and 256,333,720.56

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Solution

The fourth proportional to 670,703,852.40, 1,005,779,808.36 and 256,333,720.56 is: 384,395,108.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,703,852.40 : 1,005,779,808.36 = 256,333,720.56 : x
  2. Step 2: Convert to fraction form
    670,703,852.40/1,005,779,808.36 = 256,333,720.56/x
  3. Step 3: Cross multiply
    670,703,852.40x = 1,005,779,808.36 × 256,333,720.56
  4. Step 4: Simplify right side
    670,703,852.40x = 257,815,280,341,042,592
  5. Step 5: Solve for x
    x = 257,815,280,341,042,592/670,703,852.40
  6. Step 6: Final answer
    x = 384,395,108.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.