Home / 1,223,829,312.26-1,688,803,646.94-688,063,563.50

Finding the Fourth Proportional to 1,223,829,312.26, 1,688,803,646.94 and 688,063,563.50

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Solution

The fourth proportional to 1,223,829,312.26, 1,688,803,646.94 and 688,063,563.50 is: 949,482,287.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,829,312.26 : 1,688,803,646.94 = 688,063,563.50 : x
  2. Step 2: Convert to fraction form
    1,223,829,312.26/1,688,803,646.94 = 688,063,563.50/x
  3. Step 3: Cross multiply
    1,223,829,312.26x = 1,688,803,646.94 × 688,063,563.50
  4. Step 4: Simplify right side
    1,223,829,312.26x = 1,162,004,255,365,332,224
  5. Step 5: Solve for x
    x = 1,162,004,255,365,332,224/1,223,829,312.26
  6. Step 6: Final answer
    x = 949,482,287.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.