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Finding the Fourth Proportional to 448,389,969.60, 672,868,389.60 and 264,157,089.60

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Solution

The fourth proportional to 448,389,969.60, 672,868,389.60 and 264,157,089.60 is: 396,402,612.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,389,969.60 : 672,868,389.60 = 264,157,089.60 : x
  2. Step 2: Convert to fraction form
    448,389,969.60/672,868,389.60 = 264,157,089.60/x
  3. Step 3: Cross multiply
    448,389,969.60x = 672,868,389.60 × 264,157,089.60
  4. Step 4: Simplify right side
    448,389,969.60x = 177,742,955,480,574,912
  5. Step 5: Solve for x
    x = 177,742,955,480,574,912/448,389,969.60
  6. Step 6: Final answer
    x = 396,402,612.75

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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.