Home / 38,433,378.48-53,038,510.20-21,030,068.40

Finding the Fourth Proportional to 38,433,378.48, 53,038,510.20 and 21,030,068.40

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Solution

The fourth proportional to 38,433,378.48, 53,038,510.20 and 21,030,068.40 is: 29,021,739.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,433,378.48 : 53,038,510.20 = 21,030,068.40 : x
  2. Step 2: Convert to fraction form
    38,433,378.48/53,038,510.20 = 21,030,068.40/x
  3. Step 3: Cross multiply
    38,433,378.48x = 53,038,510.20 × 21,030,068.40
  4. Step 4: Simplify right side
    38,433,378.48x = 1,115,403,497,340,097.62
  5. Step 5: Solve for x
    x = 1,115,403,497,340,097.62/38,433,378.48
  6. Step 6: Final answer
    x = 29,021,739.47

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1.5x scale

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.