Home / 1,243,272,680.04-1,715,671,234.82-686,343,740.52

Finding the Fourth Proportional to 1,243,272,680.04, 1,715,671,234.82 and 686,343,740.52

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Solution

The fourth proportional to 1,243,272,680.04, 1,715,671,234.82 and 686,343,740.52 is: 947,129,484.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,272,680.04 : 1,715,671,234.82 = 686,343,740.52 : x
  2. Step 2: Convert to fraction form
    1,243,272,680.04/1,715,671,234.82 = 686,343,740.52/x
  3. Step 3: Cross multiply
    1,243,272,680.04x = 1,715,671,234.82 × 686,343,740.52
  4. Step 4: Simplify right side
    1,243,272,680.04x = 1,177,540,212,808,925,952
  5. Step 5: Solve for x
    x = 1,177,540,212,808,925,952/1,243,272,680.04
  6. Step 6: Final answer
    x = 947,129,484.72

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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.