Home / 84,829,547.20-127,244,320.80-21,004,139.20

Finding the Fourth Proportional to 84,829,547.20, 127,244,320.80 and 21,004,139.20

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Solution

The fourth proportional to 84,829,547.20, 127,244,320.80 and 21,004,139.20 is: 31,506,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,829,547.20 : 127,244,320.80 = 21,004,139.20 : x
  2. Step 2: Convert to fraction form
    84,829,547.20/127,244,320.80 = 21,004,139.20/x
  3. Step 3: Cross multiply
    84,829,547.20x = 127,244,320.80 × 21,004,139.20
  4. Step 4: Simplify right side
    84,829,547.20x = 2,672,657,426,492,655
  5. Step 5: Solve for x
    x = 2,672,657,426,492,655/84,829,547.20
  6. Step 6: Final answer
    x = 31,506,208.80

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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.