Home / 710,228,730.40-1,065,154,138.80-218,941,050.40

Finding the Fourth Proportional to 710,228,730.40, 1,065,154,138.80 and 218,941,050.40

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Solution

The fourth proportional to 710,228,730.40, 1,065,154,138.80 and 218,941,050.40 is: 328,353,326.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,228,730.40 : 1,065,154,138.80 = 218,941,050.40 : x
  2. Step 2: Convert to fraction form
    710,228,730.40/1,065,154,138.80 = 218,941,050.40/x
  3. Step 3: Cross multiply
    710,228,730.40x = 1,065,154,138.80 × 218,941,050.40
  4. Step 4: Simplify right side
    710,228,730.40x = 233,205,965,986,779,392
  5. Step 5: Solve for x
    x = 233,205,965,986,779,392/710,228,730.40
  6. Step 6: Final answer
    x = 328,353,326.20

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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.