Home / 670,950,860.93-1,006,089,509.75-390,922,416.44

Finding the Fourth Proportional to 670,950,860.93, 1,006,089,509.75 and 390,922,416.44

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Solution

The fourth proportional to 670,950,860.93, 1,006,089,509.75 and 390,922,416.44 is: 586,187,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,950,860.93 : 1,006,089,509.75 = 390,922,416.44 : x
  2. Step 2: Convert to fraction form
    670,950,860.93/1,006,089,509.75 = 390,922,416.44/x
  3. Step 3: Cross multiply
    670,950,860.93x = 1,006,089,509.75 × 390,922,416.44
  4. Step 4: Simplify right side
    670,950,860.93x = 393,302,942,303,192,768
  5. Step 5: Solve for x
    x = 393,302,942,303,192,768/670,950,860.93
  6. Step 6: Final answer
    x = 586,187,402.40

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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.