Home / 28,166,616,804.80-42,249,925,207.20-18,248,652,286.40

Finding the Fourth Proportional to 28,166,616,804.80, 42,249,925,207.20 and 18,248,652,286.40

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Solution

The fourth proportional to 28,166,616,804.80, 42,249,925,207.20 and 18,248,652,286.40 is: 27,372,978,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166,616,804.80 : 42,249,925,207.20 = 18,248,652,286.40 : x
  2. Step 2: Convert to fraction form
    28,166,616,804.80/42,249,925,207.20 = 18,248,652,286.40/x
  3. Step 3: Cross multiply
    28,166,616,804.80x = 42,249,925,207.20 × 18,248,652,286.40
  4. Step 4: Simplify right side
    28,166,616,804.80x = 771,004,194,232,599,314,432
  5. Step 5: Solve for x
    x = 771,004,194,232,599,314,432/28,166,616,804.80
  6. Step 6: Final answer
    x = 27,372,978,429.60

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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.