Home / 56,931,020.70-78,506,089.56-48,698,337.84

Finding the Fourth Proportional to 56,931,020.70, 78,506,089.56 and 48,698,337.84

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Solution

The fourth proportional to 56,931,020.70, 78,506,089.56 and 48,698,337.84 is: 67,153,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,931,020.70 : 78,506,089.56 = 48,698,337.84 : x
  2. Step 2: Convert to fraction form
    56,931,020.70/78,506,089.56 = 48,698,337.84/x
  3. Step 3: Cross multiply
    56,931,020.70x = 78,506,089.56 × 48,698,337.84
  4. Step 4: Simplify right side
    56,931,020.70x = 3,823,116,071,890,177.50
  5. Step 5: Solve for x
    x = 3,823,116,071,890,177.50/56,931,020.70
  6. Step 6: Final answer
    x = 67,153,478.45

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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.