Home / 28,018,014.40-42,013,024.80-12,854,814.40

Finding the Fourth Proportional to 28,018,014.40, 42,013,024.80 and 12,854,814.40

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Solution

The fourth proportional to 28,018,014.40, 42,013,024.80 and 12,854,814.40 is: 19,275,799.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018,014.40 : 42,013,024.80 = 12,854,814.40 : x
  2. Step 2: Convert to fraction form
    28,018,014.40/42,013,024.80 = 12,854,814.40/x
  3. Step 3: Cross multiply
    28,018,014.40x = 42,013,024.80 × 12,854,814.40
  4. Step 4: Simplify right side
    28,018,014.40x = 540,069,636,186,597.12
  5. Step 5: Solve for x
    x = 540,069,636,186,597.12/28,018,014.40
  6. Step 6: Final answer
    x = 19,275,799.79

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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.