Home / 18,697,345.20-28,030,271.40-9,721,897.20

Finding the Fourth Proportional to 18,697,345.20, 28,030,271.40 and 9,721,897.20

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Solution

The fourth proportional to 18,697,345.20, 28,030,271.40 and 9,721,897.20 is: 14,574,658.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697,345.20 : 28,030,271.40 = 9,721,897.20 : x
  2. Step 2: Convert to fraction form
    18,697,345.20/28,030,271.40 = 9,721,897.20/x
  3. Step 3: Cross multiply
    18,697,345.20x = 28,030,271.40 × 9,721,897.20
  4. Step 4: Simplify right side
    18,697,345.20x = 272,507,417,038,900.03
  5. Step 5: Solve for x
    x = 272,507,417,038,900.03/18,697,345.20
  6. Step 6: Final answer
    x = 14,574,658.28

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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.