Home / 15,656,810,798.40-21,606,402,428.64-8,616,280,430.40

Finding the Fourth Proportional to 15,656,810,798.40, 21,606,402,428.64 and 8,616,280,430.40

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Solution

The fourth proportional to 15,656,810,798.40, 21,606,402,428.64 and 8,616,280,430.40 is: 11,890,468,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656,810,798.40 : 21,606,402,428.64 = 8,616,280,430.40 : x
  2. Step 2: Convert to fraction form
    15,656,810,798.40/21,606,402,428.64 = 8,616,280,430.40/x
  3. Step 3: Cross multiply
    15,656,810,798.40x = 21,606,402,428.64 × 8,616,280,430.40
  4. Step 4: Simplify right side
    15,656,810,798.40x = 186,166,822,417,237,835,776
  5. Step 5: Solve for x
    x = 186,166,822,417,237,835,776/15,656,810,798.40
  6. Step 6: Final answer
    x = 11,890,468,934.85

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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.