Home / 705,089,628.90-1,057,634,443.35-429,184,707.30

Finding the Fourth Proportional to 705,089,628.90, 1,057,634,443.35 and 429,184,707.30

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Solution

The fourth proportional to 705,089,628.90, 1,057,634,443.35 and 429,184,707.30 is: 643,777,060.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,089,628.90 : 1,057,634,443.35 = 429,184,707.30 : x
  2. Step 2: Convert to fraction form
    705,089,628.90/1,057,634,443.35 = 429,184,707.30/x
  3. Step 3: Cross multiply
    705,089,628.90x = 1,057,634,443.35 × 429,184,707.30
  4. Step 4: Simplify right side
    705,089,628.90x = 453,920,528,999,568,192
  5. Step 5: Solve for x
    x = 453,920,528,999,568,192/705,089,628.90
  6. Step 6: Final answer
    x = 643,777,060.95

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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.