Home / 28,690,291.70-39,592,254.15-15,637,510.25

Finding the Fourth Proportional to 28,690,291.70, 39,592,254.15 and 15,637,510.25

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Solution

The fourth proportional to 28,690,291.70, 39,592,254.15 and 15,637,510.25 is: 21,579,574.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690,291.70 : 39,592,254.15 = 15,637,510.25 : x
  2. Step 2: Convert to fraction form
    28,690,291.70/39,592,254.15 = 15,637,510.25/x
  3. Step 3: Cross multiply
    28,690,291.70x = 39,592,254.15 × 15,637,510.25
  4. Step 4: Simplify right side
    28,690,291.70x = 619,124,279,893,268.75
  5. Step 5: Solve for x
    x = 619,124,279,893,268.75/28,690,291.70
  6. Step 6: Final answer
    x = 21,579,574.25

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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.