Home / 109,038,209.30-163,637,030.10-72,634,500.80

Finding the Fourth Proportional to 109,038,209.30, 163,637,030.10 and 72,634,500.80

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Solution

The fourth proportional to 109,038,209.30, 163,637,030.10 and 72,634,500.80 is: 109,004,853.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,038,209.30 : 163,637,030.10 = 72,634,500.80 : x
  2. Step 2: Convert to fraction form
    109,038,209.30/163,637,030.10 = 72,634,500.80/x
  3. Step 3: Cross multiply
    109,038,209.30x = 163,637,030.10 × 72,634,500.80
  4. Step 4: Simplify right side
    109,038,209.30x = 11,885,693,993,708,074
  5. Step 5: Solve for x
    x = 11,885,693,993,708,074/109,038,209.30
  6. Step 6: Final answer
    x = 109,004,853.16

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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.