Home / 145,220,979.04-200,399,104.40-79,140,058.46

Finding the Fourth Proportional to 145,220,979.04, 200,399,104.40 and 79,140,058.46

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Solution

The fourth proportional to 145,220,979.04, 200,399,104.40 and 79,140,058.46 is: 109,210,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,220,979.04 : 200,399,104.40 = 79,140,058.46 : x
  2. Step 2: Convert to fraction form
    145,220,979.04/200,399,104.40 = 79,140,058.46/x
  3. Step 3: Cross multiply
    145,220,979.04x = 200,399,104.40 × 79,140,058.46
  4. Step 4: Simplify right side
    145,220,979.04x = 15,859,596,837,547,642
  5. Step 5: Solve for x
    x = 15,859,596,837,547,642/145,220,979.04
  6. Step 6: Final answer
    x = 109,210,094.45

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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.