Home / 90,730,553,631.20-136,095,830,446.80-81,742,398,286.40

Finding the Fourth Proportional to 90,730,553,631.20, 136,095,830,446.80 and 81,742,398,286.40

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Solution

The fourth proportional to 90,730,553,631.20, 136,095,830,446.80 and 81,742,398,286.40 is: 122,613,597,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,730,553,631.20 : 136,095,830,446.80 = 81,742,398,286.40 : x
  2. Step 2: Convert to fraction form
    90,730,553,631.20/136,095,830,446.80 = 81,742,398,286.40/x
  3. Step 3: Cross multiply
    90,730,553,631.20x = 136,095,830,446.80 × 81,742,398,286.40
  4. Step 4: Simplify right side
    90,730,553,631.20x = 11,124,799,577,500,688,580,608
  5. Step 5: Solve for x
    x = 11,124,799,577,500,688,580,608/90,730,553,631.20
  6. Step 6: Final answer
    x = 122,613,597,429.60

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1.5x scale

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.