Home / 663,475,433.04-915,778,205.64-385,106,638.32

Finding the Fourth Proportional to 663,475,433.04, 915,778,205.64 and 385,106,638.32

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Solution

The fourth proportional to 663,475,433.04, 915,778,205.64 and 385,106,638.32 is: 531,552,863.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,475,433.04 : 915,778,205.64 = 385,106,638.32 : x
  2. Step 2: Convert to fraction form
    663,475,433.04/915,778,205.64 = 385,106,638.32/x
  3. Step 3: Cross multiply
    663,475,433.04x = 915,778,205.64 × 385,106,638.32
  4. Step 4: Simplify right side
    663,475,433.04x = 352,672,266,220,742,080
  5. Step 5: Solve for x
    x = 352,672,266,220,742,080/663,475,433.04
  6. Step 6: Final answer
    x = 531,552,863.39

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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.