Finding the Fourth Proportional to 99,435,609,702.99, 137,221,196,437.26 and 53,709,884,878.91
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Solution
The fourth proportional to 99,435,609,702.99, 137,221,196,437.26 and 53,709,884,878.91 is: 74,119,670,866.45
Step by Step Solution
- Step 1: Write the proportion equation
99,435,609,702.99 : 137,221,196,437.26 = 53,709,884,878.91 : x - Step 2: Convert to fraction form
99,435,609,702.99/137,221,196,437.26 = 53,709,884,878.91/x - Step 3: Cross multiply
99,435,609,702.99x = 137,221,196,437.26 × 53,709,884,878.91 - Step 4: Simplify right side
99,435,609,702.99x = 7,370,134,663,590,843,514,880 - Step 5: Solve for x
x = 7,370,134,663,590,843,514,880/99,435,609,702.99 - Step 6: Final answer
x = 74,119,670,866.45
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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.