Home / 21,205,421.40-31,808,132.10-14,486,957.40

Finding the Fourth Proportional to 21,205,421.40, 31,808,132.10 and 14,486,957.40

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Solution

The fourth proportional to 21,205,421.40, 31,808,132.10 and 14,486,957.40 is: 21,730,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205,421.40 : 31,808,132.10 = 14,486,957.40 : x
  2. Step 2: Convert to fraction form
    21,205,421.40/31,808,132.10 = 14,486,957.40/x
  3. Step 3: Cross multiply
    21,205,421.40x = 31,808,132.10 × 14,486,957.40
  4. Step 4: Simplify right side
    21,205,421.40x = 460,803,054,706,272.56
  5. Step 5: Solve for x
    x = 460,803,054,706,272.56/21,205,421.40
  6. Step 6: Final answer
    x = 21,730,436.10

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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.