Home / 560,487,686.40-840,811,881.60-172,343,116.80

Finding the Fourth Proportional to 560,487,686.40, 840,811,881.60 and 172,343,116.80

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Solution

The fourth proportional to 560,487,686.40, 840,811,881.60 and 172,343,116.80 is: 258,539,382.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,487,686.40 : 840,811,881.60 = 172,343,116.80 : x
  2. Step 2: Convert to fraction form
    560,487,686.40/840,811,881.60 = 172,343,116.80/x
  3. Step 3: Cross multiply
    560,487,686.40x = 840,811,881.60 × 172,343,116.80
  4. Step 4: Simplify right side
    560,487,686.40x = 144,908,140,317,416,576
  5. Step 5: Solve for x
    x = 144,908,140,317,416,576/560,487,686.40
  6. Step 6: Final answer
    x = 258,539,382.46

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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.