Home / 7,139,319.80-10,708,979.70-6,828,328.40

Finding the Fourth Proportional to 7,139,319.80, 10,708,979.70 and 6,828,328.40

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Solution

The fourth proportional to 7,139,319.80, 10,708,979.70 and 6,828,328.40 is: 10,242,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,319.80 : 10,708,979.70 = 6,828,328.40 : x
  2. Step 2: Convert to fraction form
    7,139,319.80/10,708,979.70 = 6,828,328.40/x
  3. Step 3: Cross multiply
    7,139,319.80x = 10,708,979.70 × 6,828,328.40
  4. Step 4: Simplify right side
    7,139,319.80x = 73,124,430,220,533.48
  5. Step 5: Solve for x
    x = 73,124,430,220,533.48/7,139,319.80
  6. Step 6: Final answer
    x = 10,242,492.60

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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.