Finding the Fourth Proportional to 102,730,440.61, 141,767,973.84 and 56,319,698.08
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Solution
The fourth proportional to 102,730,440.61, 141,767,973.84 and 56,319,698.08 is: 77,721,164.60
Step by Step Solution
- Step 1: Write the proportion equation
102,730,440.61 : 141,767,973.84 = 56,319,698.08 : x - Step 2: Convert to fraction form
102,730,440.61/141,767,973.84 = 56,319,698.08/x - Step 3: Cross multiply
102,730,440.61x = 141,767,973.84 × 56,319,698.08 - Step 4: Simplify right side
102,730,440.61x = 7,984,329,484,082,138 - Step 5: Solve for x
x = 7,984,329,484,082,138/102,730,440.61 - Step 6: Final answer
x = 77,721,164.60
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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.