Home / 105,423,498.04-145,382,220.60-82,210,155.16

Finding the Fourth Proportional to 105,423,498.04, 145,382,220.60 and 82,210,155.16

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Solution

The fourth proportional to 105,423,498.04, 145,382,220.60 and 82,210,155.16 is: 113,370,312.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,423,498.04 : 145,382,220.60 = 82,210,155.16 : x
  2. Step 2: Convert to fraction form
    105,423,498.04/145,382,220.60 = 82,210,155.16/x
  3. Step 3: Cross multiply
    105,423,498.04x = 145,382,220.60 × 82,210,155.16
  4. Step 4: Simplify right side
    105,423,498.04x = 11,951,894,913,031,348
  5. Step 5: Solve for x
    x = 11,951,894,913,031,348/105,423,498.04
  6. Step 6: Final answer
    x = 113,370,312.46

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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.