Home / 28,166,616,009.30-42,249,924,013.95-18,248,651,490.90

Finding the Fourth Proportional to 28,166,616,009.30, 42,249,924,013.95 and 18,248,651,490.90

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Solution

The fourth proportional to 28,166,616,009.30, 42,249,924,013.95 and 18,248,651,490.90 is: 27,372,977,236.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166,616,009.30 : 42,249,924,013.95 = 18,248,651,490.90 : x
  2. Step 2: Convert to fraction form
    28,166,616,009.30/42,249,924,013.95 = 18,248,651,490.90/x
  3. Step 3: Cross multiply
    28,166,616,009.30x = 42,249,924,013.95 × 18,248,651,490.90
  4. Step 4: Simplify right side
    28,166,616,009.30x = 771,004,138,847,580,323,840
  5. Step 5: Solve for x
    x = 771,004,138,847,580,323,840/28,166,616,009.30
  6. Step 6: Final answer
    x = 27,372,977,236.35

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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.