Home / 30,528,036.80-45,778,058.40-13,479,934.40

Finding the Fourth Proportional to 30,528,036.80, 45,778,058.40 and 13,479,934.40

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Solution

The fourth proportional to 30,528,036.80, 45,778,058.40 and 13,479,934.40 is: 20,213,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528,036.80 : 45,778,058.40 = 13,479,934.40 : x
  2. Step 2: Convert to fraction form
    30,528,036.80/45,778,058.40 = 13,479,934.40/x
  3. Step 3: Cross multiply
    30,528,036.80x = 45,778,058.40 × 13,479,934.40
  4. Step 4: Simplify right side
    30,528,036.80x = 617,085,224,191,369
  5. Step 5: Solve for x
    x = 617,085,224,191,369/30,528,036.80
  6. Step 6: Final answer
    x = 20,213,721.18

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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.