Home / 670,020,485.36-1,005,030,961.32-209,994,347.12

Finding the Fourth Proportional to 670,020,485.36, 1,005,030,961.32 and 209,994,347.12

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Solution

The fourth proportional to 670,020,485.36, 1,005,030,961.32 and 209,994,347.12 is: 314,991,593.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,020,485.36 : 1,005,030,961.32 = 209,994,347.12 : x
  2. Step 2: Convert to fraction form
    670,020,485.36/1,005,030,961.32 = 209,994,347.12/x
  3. Step 3: Cross multiply
    670,020,485.36x = 1,005,030,961.32 × 209,994,347.12
  4. Step 4: Simplify right side
    670,020,485.36x = 211,050,820,557,779,392
  5. Step 5: Solve for x
    x = 211,050,820,557,779,392/670,020,485.36
  6. Step 6: Final answer
    x = 314,991,593.79

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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.