Home / 786,492,898.50-1,179,607,816.09-288,400,485.56

Finding the Fourth Proportional to 786,492,898.50, 1,179,607,816.09 and 288,400,485.56

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Solution

The fourth proportional to 786,492,898.50, 1,179,607,816.09 and 288,400,485.56 is: 432,552,496.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,492,898.50 : 1,179,607,816.09 = 288,400,485.56 : x
  2. Step 2: Convert to fraction form
    786,492,898.50/1,179,607,816.09 = 288,400,485.56/x
  3. Step 3: Cross multiply
    786,492,898.50x = 1,179,607,816.09 × 288,400,485.56
  4. Step 4: Simplify right side
    786,492,898.50x = 340,199,466,925,175,232
  5. Step 5: Solve for x
    x = 340,199,466,925,175,232/786,492,898.50
  6. Step 6: Final answer
    x = 432,552,496.75

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1.5x scale

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.