Home / 13,249,345.40-18,282,890.10-7,666,626.92

Finding the Fourth Proportional to 13,249,345.40, 18,282,890.10 and 7,666,626.92

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Solution

The fourth proportional to 13,249,345.40, 18,282,890.10 and 7,666,626.92 is: 10,579,246.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249,345.40 : 18,282,890.10 = 7,666,626.92 : x
  2. Step 2: Convert to fraction form
    13,249,345.40/18,282,890.10 = 7,666,626.92/x
  3. Step 3: Cross multiply
    13,249,345.40x = 18,282,890.10 × 7,666,626.92
  4. Step 4: Simplify right side
    13,249,345.40x = 140,168,097,416,061.50
  5. Step 5: Solve for x
    x = 140,168,097,416,061.50/13,249,345.40
  6. Step 6: Final answer
    x = 10,579,246.99

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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.